... ,OEM Service 4.Low price high quality PCB printed circuit board, PCB, Multilayer pcb.Our PCB Technical Specifications:1.Base material ... 50 to 5 ounce4. Solder mask: LPI solder mask, conventional solder mask, peelable solder mask, UV solder mask5. Minimum ... Gold Plating (Flash Gold), OSP, etc.14SoldermaskGreen, White, Red, Yellow, Black, Blue, transparent photosensitive soldermask, Strippable soldermask ...