... 's specialized in manufacturing single side PCB, double side PCB, multilayer PCB, especially in aluminum PCB, DVD PCB and power supply PCB. We choose the best base ... , including MLB with blind/buried via holesMain base material:FR-1, FR-2, FR-4, CEM-1, CEM-3, High Frequency Laminate with various ... Grandwork, we are looking forward to your inquiry!OUR PARTNERS: FR-4 single side 1 layer pcb