1.We have 10 years experience in PCB 2.UL,SGS,ISO T/S,IPC approved ... ,OEM Service 4.Low price high quality PCB printed circuit board, PCB, Multilayer pcb.Our PCB Technical Specifications:1.Base material: FR4, ... thickness: 0.50 to 5 ounce4. Solder mask: LPI solder mask, conventional solder mask, peelable solder mask, UV solder mask5. Minimum line width: 0 ... of Copper0.5-14oz (18-490um)www.tsoar-pcb.com