... contract assembly manufacture service 2, Surface mount, PCBA prototype 3, DIP,auto insertion 4, electronics assembly contract assembly manufacture ... ShenZhen China (Mainland)Brand Name: RIDECONSurface Finishing: HAL, Lead Free HAL, Immersion gold, OSP, Immersion tin, Immersion silver, ... 1-30 Layers 2Base Material for PCBFR4, CEM-1, Aluminium,TEFLON, , Halogen-free…3Rang of finish baords Thickness0. ...