... line in our factoory,double sided pcb,pcb board,rigid pcb past UL, ISO9001, ISO14001,ROHS Plating gold PCB, double sided pcb,pcb board,rigid ... packing11) Hole tolerance: PTH: ±0.076 NPTH: ±0.0512) Certificate: UL, ISO 9001, ISO 14000,SGS , RoHS,CQC13) Profiling: Punching, Routing ...