Welcome to SINOSIGMA PCB Circuit Board Manufacturer ! 

SIGMA GROUP LIMITED is a High-tech Professional PCB Manufacturer in China.


SINOSIGMA PCB Advantage 
1. Excellent Quality and Competitive Price ; 
2. High Technology Capability: Min: 3mil/3mil trace/space, Min drill: 4mil .up to 30 layers. 
3. Fast and timely delivery. 
4. Related Quality certification: UL,ISO9001,ISO14001,ROHS,CQC 
5. Our PCB are used to : Telecommunication equipment,Electric equipment,Industrial control,Digital,Transportation,Medical instruments,and Led/wireless products field etc. 


We offer PCB fabrication providing consistent high quality products and affordable prices. Whether your design is simple or complex, SIGMA PCB's Printed Circuit Board Fabrication service is ready to meet your requirements. 


If you have any PCB orders or inquiry, Please Contact with us, 
We are sure any of your inquiry will get our prompt attention & reply. 


Telephone: +86-20-84733959 
Fax: +86-20-34836596 
Email: sales@chinapcbs.com 
Skype:joyhold 
Linkedin: SINISIGMA GROUP LIMITED & Becky-Hsu. 

Whatsapp:+86-13728045288

QQ:38195860