... sample before production 4,One-stop-service 5,good quality with good price .The good quality and good price for pcb ... all is confirmed.Please see the parameter as follows: 1)material: FR-4, FR-1, CEM-1, CEM-3, FR-4 ... , ISO/TS 16949, RoHS 10)Quality standard: IPC-A-600F. Double sided plated gold pcb