... all customers' needs for PCB assembly. Small order quantity accepted. According to customer's requirements process2 ... layersPCB assemblySolder mask: wet green paint, dry green paint, and UV paintBase material: FR-4, 94vo, CEM-1, CEM-3 ... ), immersion gold (tin, silver), OSP, selective immersion gold and gold plating PCB Assembly and Production Services for Single Side Double Side or Multilayer ...