... MaterialFR-4 Glass Epoxy laminate,ALuminium Based (Others, by special order) 3Major LaminateKing Board (KB-6150/60), ShengYi(S1141, S1170 ... , brand name, productivity, etc.)If you need, we will send to you with attachment.Annual turnoverOver USD$100 millionOverall Production24000 square ... the inquiry of PCBs,pease send the files to me, then i will send the all files with attachment to you 6-layer pcb ...