... service also welcomed! 1.About us:We are a SMT PCB assembly(PCBA) manufacture with 5 years electronic manufacturing service(EMS ... service.Max layers:16Base Material:FR-1, CEM-1, FR-4Copper Thickness: 1~5OZ Board Thickness: 0.4~7.0mmMin. Hole size: 0 ... : 0.1mmSurface Finishing : HASL, plated gold,immersion Au, Ag, Sn ,... 4.Our certification:RoHS,SGS,ISO9001:2000,IPC-610,UL,CE5 ...