led pcb board 1.Aluminum material; 2.Good quality with E-test ; 3. Certificate: UL, ISO,TS16949; 4. T/T,Western Union,Paypal round led pcb board with E-test 1. ONE-STOP-SERVICE ;2. OEM service ;3. Gerber file needed ;4. PCB clone with sample ;5. Quality guarantee and professional after-sell service . Our Production Capability for PCB:Wonderful PCB Limited 15years experience, 700staff Invitation ...