double-sided pcb with 2oz copper fast delivery, competitive price good quality and good after sales ... base PCB1/3oz, 1/2oz, 1oz, 2oz, 3oz,4oz, 5oz copper thickness PCB board,CEM-1,CEM-3, FR4, FR4 High ... , PTFE, Ceramics, Aluminum based etc. double-sided pcb with 2oz copper