1)double side pcb 2)8 years of experience in PCB industry 3)Good after services 4)UL. ... .Product process capability PCB Specificationproviding OEM service to all sorts of printed circuit board assembly1Layer1-30 layer2MaterialFR-4,CEM-1,CEM ... ,ISO9001,ISO14001,ROHS,CQC,SGS15profiling punchingRouting,V-CUT,Beveling Double side PCB - car parts