... price.Welcome to Shenzhen Rigao Electronics Co.,Ltd Product Description 1.Detailed Specification of PCB Manufacturing 1Layer1-30 layer2MaterialFR-4,CEM ... 64 layers, Buried & Blind via PCB, Imdepence PCB, Highfrequency PCB, FR-4, Flexible PCB, Flex-rigid PCB, Aluminium PCB.3. PCBA Testing Jigs: ... file after we done. Welcome all kindly of pcb and pcb assembly business for inquiry, we will feedback to ...