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Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ

Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ

MOQ: 100 piece
Price: negotiations
Standard Packaging: Cartons
Delivery Period: 5-8 work days
Payment Method: Payment Terms T/T, Western Union
Supply Capacity: 50000 pcs per months
Detail Information
Place of Origin
Dongguan
Brand Name
CHANLONG
Certification
IATF16949/ROHS
Model Number
PCBA
Type:
Smart Electronics Pcba
Supplier Type:
Customize PCBA
Copper Thickness:
1 Oz
Product Name:
Cheap Blank Pcb
Number Of Layer:
1,2,4,6,up To 22 Layers
Board Material:
FR-4, Glass Epoxy, FR4 High Tg, Rohs Compliant, Aluminum, Rogers, Etc
Board Thickness:
0.4~4.0mm
Copper Weight:
1/2OZ 1OZ 2OZ 3OZ
Solder Mask:
Green, Red, White, Yellow, Blue, Black, Etc
Silk Screen:
White, Yellow, Black, Or Negative, Etc
Surface Finish:
HASL, Nickle, Imm Gold, Imm Tin, Imm Silver, OSP Etc
PCB Cutting:
Shear,V-score,tab-routed
PCB Type:
Hard, Flexible, Rigid-flexible
Port:
Shenzhen.Hongkong
Minimum Order Quantity:
100 piece
Price:
negotiations
Packaging Details:
Cartons
Delivery Time:
5-8 work days
Payment Terms:
Payment Terms T/T, Western Union
Supply Ability:
50000 pcs per months
Product Description
 
Volume PCB Assembly Services
The world of PCB assembly manufacturer is changing rapidly. In order to provide superior production services,
we permanently reinvent ourselves. Our PCB assembly services consistently meet and exceed our customer’s expectations for quality, price, and delivery. CHANGLONG is committed to our customers’ growth and success. Our
services extend beyond other PCB manufacturing and assembly Service Providers: more opportunities, more
benefits, more reliability, and directly from the Chinese PCB assembly factory.

Electronic Assembly Services

1. Minimum 0.2 mm Pitch
2. X-Ray Inspection
3. One Step Solution
4. Free DFM Check
5. Low Your Cost

Through-Hole PCB Assembly

1. 3 DIP Assembly Lines
2. 4 Soldering Lines
3. Package on Package
4. Certified Components Sourcing
5. High Quality, Low Price

SMT PCB Assembly

1. 5 SMT Assembly Lines
2. 01005, 0201, 0402, 0805
3. AOI. X-Ray SPI, ICT Jig Test
4. 100% E-Test for Each PCBA
5. Capability: 100000+ pcs

LED PCB Assembly

1. 100% Original LED Chip.
2. LED Driver PCBA
3. LED Control PCBA
4. Custom Hardware & Firmware
5. Capability: 100000+ pcs
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 0
PCB Design & Layout Services
1. Schematic Design.
2.PCB Layout Services
3. IC Programming
4. Pro R&D Team(70 Engineers)
 
We have a professional R&D team for developing printed circuit board (PCB) and embedded firmware. It is the first process to
connect smart device. We have years of experience in IoT hardware and firmware design.
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 1
Electronic PCB Manufacturing Services
Electronic contract manufacturing services are the ones that we use for outsourcing our production load. These sorts of companies offer a wide range of services relating to designing, building, distributing, and repairing of electronic parts. Most renowned electronic tycoons today rely on contract electronic manufacturing. However, some industrialists have gone so far as to lease out all of their operations to electronic contract manufacturing companies. Some of the services provided by these companies include but are not limited to:
* Prototyping
* PCB assembly
* Electromechanical assembly
* Testing
* Aftermarket services
* Cable assembly
* Contract design
* 3-D modeling
* Custom shipment packaging
* Configuration management
* Potting and heat shrink use
* Functional testing
* Encapsulation
* 3-D CAD and physical modeling
* Circuit simulation and optimization
* Costing exercises
* Quality review
* Functional Analysis
* Technical feasibility studies

 

PCB Manufacturing Capability
We are the top china PCB manufacturer from low to mass production. CHANGLONG Electronics coordinates the whole process which includes manufacturing, design, assembly, testing and finally shipment. You got a real product according to your design.
 
Dongguan Changlong Electronics Industrial Co., Ltd. is a China PCB manufacturer and UL certified company with the file number (E501497). CHANGLONG fabricates 2 to 50 layers PCB which includes rigid, Flex HDI, and Rigid-flex boards. From small to mass production, high quality and low-cost production is our main focus. Moreover, we are manufacturing 400,000 pieces and 30,000 square meters of PCB board manufacturer in china per month. We are one of the top China PCB manufacturers and our professional team mainly focuses on quality control. Our factory has the latest high-level equipment and we bought our core machines from mainstream companies. In short, our quality, management, and core machinery are good as first-class PCB board manufacturer in china.
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 2
FR4 PCB
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 3
Aluminum PCB
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 4
HDI PCB
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 5
High Frequency PCB
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 6
Heavy Copper PCB
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 7
Rigid-Flexible PCB
Volume PCB Manufacturing &
PCB Assembly Projects
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 8
Bare PCB Manufacturing
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 9
Smart Home Devices PCBA
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 10
Telecom PCB Assembly
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 11
BLE & WIFI Module PCBA
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 12
IoT Smart Sensor PCB Assembly
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 13
Home Appliance PCB Assembly
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 14
Industrial Control PCB Assembly
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 15
Medical Devices PCB Assembly
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 16
Security-Device-PCBA
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 17
LoRa Products Assembly
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 18
Payment & Energy Products PCB
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 19
Wearable Devices Assembly
 
 
 
 
 
Specification
PCB Technical Specification
value
Order quantity
1-500,000
Number of layer
1,2,4,6,up to 22 layers
Board material
FR-4, glass epoxy, FR4 High Tg, Rohs compliant, Aluminum, Rogers, etc
PCB type
Hard, flexible, rigid-flexible
Shape
Any shape: Rectangular,round,slots,cutouts,complex,irregular, etc
Max PCB dimensions
20inch*20inch or 500mm*500mm
Board thickness
0.4~4.0mm
Thickness tolerance
± 10%
Copper thickness
1/2OZ 1OZ 2OZ 3OZ
Copper thickness tolerance
± 0.25oz
Solder mask
Green, red, white, yellow, blue, black, etc
Silk screen
White, yellow, black, or negative, etc
Silk screen min line width
0.006'' or 0.15mm
Surface finish
HASL, Nickle, Imm Gold, Imm Tin, Imm Silver, OSP etc
Min drill hole diameter
0.01'',0.25mm.or 10 mil
PCB cutting
Shear,V-score,tab-routed
PCB Assembly Capabilities
Rigid, flexible, rigid-flexible
SMT Jointing Min. Space
0201mm
QFP Space
Pitch 0.3mm
Min. Package
0201
Min. Size
2*2 inch(50*50mm)
Max. Size
14*22 inch(350*550mm)
Placement Precision
±0.01mm
Placement Precision
QFP, SOP, PLCC, BGA
Placement Capability
0805, 0603, 0402, 0201
PCB Lead time (workday(s))
 
 
 
 
 
 
Single, Double-sided
4 layer
6 layer
Over 8 layer
HDI
Sample Lead time (Normal)
5-6
6-7
7-8
10-12
10-12
Sample Lead time (Faster)
48-72 hours
5
6
6-7
12
Mass production lead time
7-9
10-12
13-15
16
20
PCB Assembly Lead time
 
 
 
 
 
Sample Lead time
PCB Fab+Components Sourcing+PCBA=15 workdays
 
 
 
 
Mass production lead time
PCB Fab+Components Sourcing+PCBA=20 workdays
 
 
 
 
static vaccum bag Outer packing: High quality carton
Company Profile
 
Dongguan Changlong Electronics Industrial Co., Ltd.  is an expert at PCB and PCBA manufacture, based in Dongguan, Guangdong, China. We are specialized in manufacturing Single-Sided Boards, Double-Sided Boards and multilayer PCB. We are honored as the excellent supplier of many companies all around this world. We can offer all kinds of services including PCB and PCB assembly sample orders and batch orders. We have got the ISO9001:2000, ISO14001, and UL RoHS certifications. Now our PCB daily capacity reaches 1000 square meters, and PCB assembly can reach 100,000,000 units per month. We deeply believe that our good service and experience will completely meet you need. Integrity, value and innovation are the forces that drive our success. We are the smart choice for you and the trusted source at the center of your deal. Welcome the win-win situation together.
FAQ
These might help you before you contact us
- What does changlong do?
We specialize in manufacturing Rigid FR-4 PCB, Flexible PCB, Metal core PCB, RF/Microwave PCB as well as PCB assembly, mainly focus on the fabrication and assembly services of quick turn PCB prototype, small to mass production of PCB & PCB Assembly..
 
- Where is your target markets?
The printed circuit board we manufactured are mainly exported to foreign countries, currently, more than 95% of our electronic board products are shipped to Europe, North America.
 
- What payment methods do you accept?
T/T, West Union,Money gram and L/C are accepted, for samples paypal. FOB, CIF, DDU and Ex-work are accepted.
 
- How fast do you provide quotes?
During normal business hours, Monday-Friday 8am – 5pm, we normally provide quotes within 5-45 minutes. However, sometimes, if the board is complex, we like to send it to our CAM department to verify that we can build the board properly, which adds some time to the process. If you submit your info after hours, one of our sales professionals will provide you with a quote the next business day.
 
- How to place an order?
1. Send us the PO with request (Final project files confirmed) and we will confirm with PI.
2. The order will be entered into our order system on same day.
3. Deposit or full payment complete,then order confirmed by our accouting department.
4. The order will be proceed accordingly by our purchasing system.
5. Sample or photos offered for approval.
6. Balance payment complete,shipment arranged and tracking will be offered via email.
 
- How fast can you manufacture my PCBs?
We have a 24 hour turnaround time for some PCB requirements. Please submit your Gerber files or contact us to learn more about our expedited PCB services.
 
- What file format do you accept for quoting?
You can use any PCB design software that you want, however, it needs to be able to export Gerber RS-274X and NC Drill files. Please .zip all of your files together (include readme).
 
- Do you ship PCBs internationally?
Yes, we have many customers from around the world that rely on CHANGLONG Electronics Ltd to manufacture their PCBs.
 
- Whether all PCBAs will be tested before delivery?
Yes, we will test each piece of PCBA product under your testing methods, to ensure quality and functionality.
 
- How can i know the processing about my PCB or PCBA order?
With our PCB Board Order Helper (http://erp.fastbom.com/)you will be able to easily learn how your order goes in time. We will update on time with clear photos and samples shipment if request. Clients can access the process details with their own account info. Each Customer also has a sale to contact you. CHANGLONG working hours: AM9:00-PM6:00(Beijing Time) from Monday to Friday. We will reply your email in 2 hours in our working time. And you also can contact with our sales’s cell phone if urgent.
 
- How long has your company been?
Our company established in the year 2006,we’re focus on PCB and PCBA service with more than 10 years. The factory has gotten ISO9001:2008,ISO14001:2004 certificates.With 300 experienced staff in our factory.
 
- Does our PCBA product will be tested before shipment?
Yes, we could provide Function Circuit Testing if you provide us the testing methods.
 
 
products
PRODUCTS DETAILS
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ
MOQ: 100 piece
Price: negotiations
Standard Packaging: Cartons
Delivery Period: 5-8 work days
Payment Method: Payment Terms T/T, Western Union
Supply Capacity: 50000 pcs per months
Detail Information
Place of Origin
Dongguan
Brand Name
CHANLONG
Certification
IATF16949/ROHS
Model Number
PCBA
Type:
Smart Electronics Pcba
Supplier Type:
Customize PCBA
Copper Thickness:
1 Oz
Product Name:
Cheap Blank Pcb
Number Of Layer:
1,2,4,6,up To 22 Layers
Board Material:
FR-4, Glass Epoxy, FR4 High Tg, Rohs Compliant, Aluminum, Rogers, Etc
Board Thickness:
0.4~4.0mm
Copper Weight:
1/2OZ 1OZ 2OZ 3OZ
Solder Mask:
Green, Red, White, Yellow, Blue, Black, Etc
Silk Screen:
White, Yellow, Black, Or Negative, Etc
Surface Finish:
HASL, Nickle, Imm Gold, Imm Tin, Imm Silver, OSP Etc
PCB Cutting:
Shear,V-score,tab-routed
PCB Type:
Hard, Flexible, Rigid-flexible
Port:
Shenzhen.Hongkong
Minimum Order Quantity:
100 piece
Price:
negotiations
Packaging Details:
Cartons
Delivery Time:
5-8 work days
Payment Terms:
Payment Terms T/T, Western Union
Supply Ability:
50000 pcs per months
Product Description
 
Volume PCB Assembly Services
The world of PCB assembly manufacturer is changing rapidly. In order to provide superior production services,
we permanently reinvent ourselves. Our PCB assembly services consistently meet and exceed our customer’s expectations for quality, price, and delivery. CHANGLONG is committed to our customers’ growth and success. Our
services extend beyond other PCB manufacturing and assembly Service Providers: more opportunities, more
benefits, more reliability, and directly from the Chinese PCB assembly factory.

Electronic Assembly Services

1. Minimum 0.2 mm Pitch
2. X-Ray Inspection
3. One Step Solution
4. Free DFM Check
5. Low Your Cost

Through-Hole PCB Assembly

1. 3 DIP Assembly Lines
2. 4 Soldering Lines
3. Package on Package
4. Certified Components Sourcing
5. High Quality, Low Price

SMT PCB Assembly

1. 5 SMT Assembly Lines
2. 01005, 0201, 0402, 0805
3. AOI. X-Ray SPI, ICT Jig Test
4. 100% E-Test for Each PCBA
5. Capability: 100000+ pcs

LED PCB Assembly

1. 100% Original LED Chip.
2. LED Driver PCBA
3. LED Control PCBA
4. Custom Hardware & Firmware
5. Capability: 100000+ pcs
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 0
PCB Design & Layout Services
1. Schematic Design.
2.PCB Layout Services
3. IC Programming
4. Pro R&D Team(70 Engineers)
 
We have a professional R&D team for developing printed circuit board (PCB) and embedded firmware. It is the first process to
connect smart device. We have years of experience in IoT hardware and firmware design.
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 1
Electronic PCB Manufacturing Services
Electronic contract manufacturing services are the ones that we use for outsourcing our production load. These sorts of companies offer a wide range of services relating to designing, building, distributing, and repairing of electronic parts. Most renowned electronic tycoons today rely on contract electronic manufacturing. However, some industrialists have gone so far as to lease out all of their operations to electronic contract manufacturing companies. Some of the services provided by these companies include but are not limited to:
* Prototyping
* PCB assembly
* Electromechanical assembly
* Testing
* Aftermarket services
* Cable assembly
* Contract design
* 3-D modeling
* Custom shipment packaging
* Configuration management
* Potting and heat shrink use
* Functional testing
* Encapsulation
* 3-D CAD and physical modeling
* Circuit simulation and optimization
* Costing exercises
* Quality review
* Functional Analysis
* Technical feasibility studies

 

PCB Manufacturing Capability
We are the top china PCB manufacturer from low to mass production. CHANGLONG Electronics coordinates the whole process which includes manufacturing, design, assembly, testing and finally shipment. You got a real product according to your design.
 
Dongguan Changlong Electronics Industrial Co., Ltd. is a China PCB manufacturer and UL certified company with the file number (E501497). CHANGLONG fabricates 2 to 50 layers PCB which includes rigid, Flex HDI, and Rigid-flex boards. From small to mass production, high quality and low-cost production is our main focus. Moreover, we are manufacturing 400,000 pieces and 30,000 square meters of PCB board manufacturer in china per month. We are one of the top China PCB manufacturers and our professional team mainly focuses on quality control. Our factory has the latest high-level equipment and we bought our core machines from mainstream companies. In short, our quality, management, and core machinery are good as first-class PCB board manufacturer in china.
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 2
FR4 PCB
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 3
Aluminum PCB
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 4
HDI PCB
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 5
High Frequency PCB
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 6
Heavy Copper PCB
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 7
Rigid-Flexible PCB
Volume PCB Manufacturing &
PCB Assembly Projects
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 8
Bare PCB Manufacturing
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 9
Smart Home Devices PCBA
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 10
Telecom PCB Assembly
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 11
BLE & WIFI Module PCBA
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 12
IoT Smart Sensor PCB Assembly
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 13
Home Appliance PCB Assembly
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 14
Industrial Control PCB Assembly
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 15
Medical Devices PCB Assembly
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 16
Security-Device-PCBA
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 17
LoRa Products Assembly
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 18
Payment & Energy Products PCB
Green Solder Mask PCBA Assembly Services from Trusted Copper Weight 1/2OZ 1OZ 2OZ 3OZ 19
Wearable Devices Assembly
 
 
 
 
 
Specification
PCB Technical Specification
value
Order quantity
1-500,000
Number of layer
1,2,4,6,up to 22 layers
Board material
FR-4, glass epoxy, FR4 High Tg, Rohs compliant, Aluminum, Rogers, etc
PCB type
Hard, flexible, rigid-flexible
Shape
Any shape: Rectangular,round,slots,cutouts,complex,irregular, etc
Max PCB dimensions
20inch*20inch or 500mm*500mm
Board thickness
0.4~4.0mm
Thickness tolerance
± 10%
Copper thickness
1/2OZ 1OZ 2OZ 3OZ
Copper thickness tolerance
± 0.25oz
Solder mask
Green, red, white, yellow, blue, black, etc
Silk screen
White, yellow, black, or negative, etc
Silk screen min line width
0.006'' or 0.15mm
Surface finish
HASL, Nickle, Imm Gold, Imm Tin, Imm Silver, OSP etc
Min drill hole diameter
0.01'',0.25mm.or 10 mil
PCB cutting
Shear,V-score,tab-routed
PCB Assembly Capabilities
Rigid, flexible, rigid-flexible
SMT Jointing Min. Space
0201mm
QFP Space
Pitch 0.3mm
Min. Package
0201
Min. Size
2*2 inch(50*50mm)
Max. Size
14*22 inch(350*550mm)
Placement Precision
±0.01mm
Placement Precision
QFP, SOP, PLCC, BGA
Placement Capability
0805, 0603, 0402, 0201
PCB Lead time (workday(s))
 
 
 
 
 
 
Single, Double-sided
4 layer
6 layer
Over 8 layer
HDI
Sample Lead time (Normal)
5-6
6-7
7-8
10-12
10-12
Sample Lead time (Faster)
48-72 hours
5
6
6-7
12
Mass production lead time
7-9
10-12
13-15
16
20
PCB Assembly Lead time
 
 
 
 
 
Sample Lead time
PCB Fab+Components Sourcing+PCBA=15 workdays
 
 
 
 
Mass production lead time
PCB Fab+Components Sourcing+PCBA=20 workdays
 
 
 
 
static vaccum bag Outer packing: High quality carton
Company Profile
 
Dongguan Changlong Electronics Industrial Co., Ltd.  is an expert at PCB and PCBA manufacture, based in Dongguan, Guangdong, China. We are specialized in manufacturing Single-Sided Boards, Double-Sided Boards and multilayer PCB. We are honored as the excellent supplier of many companies all around this world. We can offer all kinds of services including PCB and PCB assembly sample orders and batch orders. We have got the ISO9001:2000, ISO14001, and UL RoHS certifications. Now our PCB daily capacity reaches 1000 square meters, and PCB assembly can reach 100,000,000 units per month. We deeply believe that our good service and experience will completely meet you need. Integrity, value and innovation are the forces that drive our success. We are the smart choice for you and the trusted source at the center of your deal. Welcome the win-win situation together.
FAQ
These might help you before you contact us
- What does changlong do?
We specialize in manufacturing Rigid FR-4 PCB, Flexible PCB, Metal core PCB, RF/Microwave PCB as well as PCB assembly, mainly focus on the fabrication and assembly services of quick turn PCB prototype, small to mass production of PCB & PCB Assembly..
 
- Where is your target markets?
The printed circuit board we manufactured are mainly exported to foreign countries, currently, more than 95% of our electronic board products are shipped to Europe, North America.
 
- What payment methods do you accept?
T/T, West Union,Money gram and L/C are accepted, for samples paypal. FOB, CIF, DDU and Ex-work are accepted.
 
- How fast do you provide quotes?
During normal business hours, Monday-Friday 8am – 5pm, we normally provide quotes within 5-45 minutes. However, sometimes, if the board is complex, we like to send it to our CAM department to verify that we can build the board properly, which adds some time to the process. If you submit your info after hours, one of our sales professionals will provide you with a quote the next business day.
 
- How to place an order?
1. Send us the PO with request (Final project files confirmed) and we will confirm with PI.
2. The order will be entered into our order system on same day.
3. Deposit or full payment complete,then order confirmed by our accouting department.
4. The order will be proceed accordingly by our purchasing system.
5. Sample or photos offered for approval.
6. Balance payment complete,shipment arranged and tracking will be offered via email.
 
- How fast can you manufacture my PCBs?
We have a 24 hour turnaround time for some PCB requirements. Please submit your Gerber files or contact us to learn more about our expedited PCB services.
 
- What file format do you accept for quoting?
You can use any PCB design software that you want, however, it needs to be able to export Gerber RS-274X and NC Drill files. Please .zip all of your files together (include readme).
 
- Do you ship PCBs internationally?
Yes, we have many customers from around the world that rely on CHANGLONG Electronics Ltd to manufacture their PCBs.
 
- Whether all PCBAs will be tested before delivery?
Yes, we will test each piece of PCBA product under your testing methods, to ensure quality and functionality.
 
- How can i know the processing about my PCB or PCBA order?
With our PCB Board Order Helper (http://erp.fastbom.com/)you will be able to easily learn how your order goes in time. We will update on time with clear photos and samples shipment if request. Clients can access the process details with their own account info. Each Customer also has a sale to contact you. CHANGLONG working hours: AM9:00-PM6:00(Beijing Time) from Monday to Friday. We will reply your email in 2 hours in our working time. And you also can contact with our sales’s cell phone if urgent.
 
- How long has your company been?
Our company established in the year 2006,we’re focus on PCB and PCBA service with more than 10 years. The factory has gotten ISO9001:2008,ISO14001:2004 certificates.With 300 experienced staff in our factory.
 
- Does our PCBA product will be tested before shipment?
Yes, we could provide Function Circuit Testing if you provide us the testing methods.
 
 
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