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Our One-Stop Service for PCB & PCB Assembly manufacturing:
 1. Quick Quotation - Competitive factory direct price is always offered
 2. Free Sample - Sample for free before mass production
 3. Quality Control - Complete test procedure is necessary
 4. On Time Delivery - Customize the logistics plan according to customer's requirement
 5. After-sale Service - Reply to the claim within 24 hours to make sure our customer's manufacturing
How to get quick quotation?
Step 1. Please send us Gerber file with these format: .CAD/ .Gerber/ .PCB / .DXP/ .P-CAD, etc;
Step 2. Also please provide us the below details for quick quotation:
  a) Board material: Fr-4/ CEM-1/ CEM-3/ SY/ KB/ Rogers/High Tg/ copper based/ aluminum based, etc;
  b) Board thickness: 0.1-6.0mm;
  c) Copper thickness: 0.05 Oz-8Oz (17um-288um)
  d) Surface Treatment: OSP/ ENIG/ HASL/ Lead Free HASL/ Immersion Tin/ Immersion Sin
  e) Color of solder mask and silk print: Green/ red/ blue/ black/ white/ yellow
  f)  Board size and quantity
  g) BOM(Bill of Materials) list if PCB Assembly
P.S. If you don't have Gerber file, please provide us the imfomation as step 2 or send your PCB Board to us for clone.
Product Show
Factory & Equipments
FAQ (Frequently Asked Questions):
Q: Why we can trust your products?
A: What LEFANG's vision is to Make Our Customer's Products Better, so we try our best to fulfill the quality control system andenvironmental management system. Our approved certification including ISO9001:2008, ISO14001:2004, ISO/TS16949:2009, OHSAS18000, UL, RoHS, QC080000, CQC.
Q: What's your Lead Time?
A: The below lead time for your reference:Â
Layer count | Sample lead time/workday | Batch lead time/workday |
1-2L | 2 | 6 |
4L | 5 | 8 |
6L | 5 | 9 |
8L | 6 | 10 |
10L | 8 | 10 |
12L | 8 | 12 |
14L | 10 | 15 |
16L | 10 | 18 |
18-40L | Up to difficulty, at least 18 for sample, 24 for batch | |
HDI, Blind/Buried Hole PCB | Regular Lead Time + 3 workdays |
Q: What's your Technical Capabilities?
A:Â To pursue the zero technical issue, we have employed 70 professional engineers to ensure our high quality products. And our technical capacities are as below:
Item | Details |
Max layer count | 20L |
Max board thickness | 6.0mm |
Max aspect ratio | 10:1 |
Max copper thickness | 6OZ |
Max dimension | 600x700mm |
Min thickness of 4 layers PCB | 0.4mm |
Min hole/ pad | 0.15/0.35mm |
Hole location accuracy | +/-0.05mm |
PTH hole tolerance | +/-0.05mm |
Min line width and line space | 0.065/0.065mm |
Surface treatment | HASL/HASL lead free, OSP, Immersion gold/silver/tin, gold plating (hard gold and soft gold), silver plating, tin plating, platinum plating, carbon ink, and ENEPIG(electroless nickel - electroless palladium - immersion gold) |
Q: What kinds of test function will be offered?
A: To make sure the production quality, we offer the below testing procedure to guarantee every piece of product:
1) AOI (Automated Optical Inspection)
2) Automatic short-circuit testing
3) RoHS detector
4) Dielectric tester
5) Impedance control
6) Metallographic microscope
7) Fly probe/ fixture mold
8) Visual inspection
Q: What kinds of quality Raw Materials will be used?
A: We use top raw materials as below, ensuring product quality from the source.
Board Brand: ITEQ, SY,KB, Isola, Rogers, Arlon, Nelco, Taconic, Hitachi, etc
Potion: Rohm&Haas, Atotech, Umicore
Printing Ink: Taiyo, Rongda
Dry Film: Asahi, Dupont, Etertec
Q: Can we have a factory tour?
A: Welcome to visit our factory in Guangdong! Please inform us at least a week in advance, so that we could arrange the schedule for you.
Q: How to get the free sample?
A: Please send us the Gerber file and the necessary data information for PCB prototype. Once you make an mass order, the sample fee will be deducted from the total balance.
Q: Could we choose the shipment way we prefect?
A:Â Sure you can. We have long-term cooperation with DHL, FEDEX, TNT and UPS. If some specific request, please let us know.
Â
Now send your inquiry to us,
and you will be replied within 8 hours.
Win-win cooperation, we pursue!
Â
Our One-Stop Service for PCB & PCB Assembly manufacturing:
 1. Quick Quotation - Competitive factory direct price is always offered
 2. Free Sample - Sample for free before mass production
 3. Quality Control - Complete test procedure is necessary
 4. On Time Delivery - Customize the logistics plan according to customer's requirement
 5. After-sale Service - Reply to the claim within 24 hours to make sure our customer's manufacturing
How to get quick quotation?
Step 1. Please send us Gerber file with these format: .CAD/ .Gerber/ .PCB / .DXP/ .P-CAD, etc;
Step 2. Also please provide us the below details for quick quotation:
  a) Board material: Fr-4/ CEM-1/ CEM-3/ SY/ KB/ Rogers/High Tg/ copper based/ aluminum based, etc;
  b) Board thickness: 0.1-6.0mm;
  c) Copper thickness: 0.05 Oz-8Oz (17um-288um)
  d) Surface Treatment: OSP/ ENIG/ HASL/ Lead Free HASL/ Immersion Tin/ Immersion Sin
  e) Color of solder mask and silk print: Green/ red/ blue/ black/ white/ yellow
  f)  Board size and quantity
  g) BOM(Bill of Materials) list if PCB Assembly
P.S. If you don't have Gerber file, please provide us the imfomation as step 2 or send your PCB Board to us for clone.
Product Show
Factory & Equipments
FAQ (Frequently Asked Questions):
Q: Why we can trust your products?
A: What LEFANG's vision is to Make Our Customer's Products Better, so we try our best to fulfill the quality control system andenvironmental management system. Our approved certification including ISO9001:2008, ISO14001:2004, ISO/TS16949:2009, OHSAS18000, UL, RoHS, QC080000, CQC.
Q: What's your Lead Time?
A: The below lead time for your reference:Â
Layer count | Sample lead time/workday | Batch lead time/workday |
1-2L | 2 | 6 |
4L | 5 | 8 |
6L | 5 | 9 |
8L | 6 | 10 |
10L | 8 | 10 |
12L | 8 | 12 |
14L | 10 | 15 |
16L | 10 | 18 |
18-40L | Up to difficulty, at least 18 for sample, 24 for batch | |
HDI, Blind/Buried Hole PCB | Regular Lead Time + 3 workdays |
Q: What's your Technical Capabilities?
A:Â To pursue the zero technical issue, we have employed 70 professional engineers to ensure our high quality products. And our technical capacities are as below:
Item | Details |
Max layer count | 20L |
Max board thickness | 6.0mm |
Max aspect ratio | 10:1 |
Max copper thickness | 6OZ |
Max dimension | 600x700mm |
Min thickness of 4 layers PCB | 0.4mm |
Min hole/ pad | 0.15/0.35mm |
Hole location accuracy | +/-0.05mm |
PTH hole tolerance | +/-0.05mm |
Min line width and line space | 0.065/0.065mm |
Surface treatment | HASL/HASL lead free, OSP, Immersion gold/silver/tin, gold plating (hard gold and soft gold), silver plating, tin plating, platinum plating, carbon ink, and ENEPIG(electroless nickel - electroless palladium - immersion gold) |
Q: What kinds of test function will be offered?
A: To make sure the production quality, we offer the below testing procedure to guarantee every piece of product:
1) AOI (Automated Optical Inspection)
2) Automatic short-circuit testing
3) RoHS detector
4) Dielectric tester
5) Impedance control
6) Metallographic microscope
7) Fly probe/ fixture mold
8) Visual inspection
Q: What kinds of quality Raw Materials will be used?
A: We use top raw materials as below, ensuring product quality from the source.
Board Brand: ITEQ, SY,KB, Isola, Rogers, Arlon, Nelco, Taconic, Hitachi, etc
Potion: Rohm&Haas, Atotech, Umicore
Printing Ink: Taiyo, Rongda
Dry Film: Asahi, Dupont, Etertec
Q: Can we have a factory tour?
A: Welcome to visit our factory in Guangdong! Please inform us at least a week in advance, so that we could arrange the schedule for you.
Q: How to get the free sample?
A: Please send us the Gerber file and the necessary data information for PCB prototype. Once you make an mass order, the sample fee will be deducted from the total balance.
Q: Could we choose the shipment way we prefect?
A:Â Sure you can. We have long-term cooperation with DHL, FEDEX, TNT and UPS. If some specific request, please let us know.
Â
Now send your inquiry to us,
and you will be replied within 8 hours.
Win-win cooperation, we pursue!
Laptop Holder Vertical Double,Laptop Holder Vertical Stand,Laptop Holder Vertical Adjustable,Laptop Holder Vertical Desk,etc.
Shenzhen Chengrong Technology Co.ltd is a high-quality enterprise specializing in metal stamping and CNC production for 12 years. The company mainly aims at the R&D, production and sales of Notebook Laptop Stands and Mobile Phone Stands. From the mold design and processing to machining and product surface oxidation, spraying treatment etc ,integration can fully meet the various processing needs of customers. Have a complete and scientific quality management system, strength and product quality are recognized and trusted by the industry, to meet changing economic and social needs .
Laptop Holder Vertical Double,Laptop Holder Vertical Stand,Laptop Holder Vertical Adjustable,Laptop Holder Vertical Desk
Shenzhen ChengRong Technology Co.,Ltd. , https://www.laptopstandsupplier.com