1,PCBA,SMT,DIP and final Assembly 2,Best service and fast 3, ... : 0.1mmSurface Finishing (Bonding pad): HASL, plated gold, immersion Au, Ag, Sn, ...2. Our certification: RoHS, ISO9001: 20003. Corrugated 5 layer ... convenient, thank you!PCBA OEM and ODM service also welcomed! SMT PCBA for Medical Electronics