... high quality and consistencyPCB process capability:1.Layer: 2-22 layer2.Product type: Rigid PCB,High Density Inverter PCB,thick copper PCB3.Materials: FR-4, ... CEM-3, Teflon, Aluminum Substrate, Rogers, Halogen Free, High Tg4. ... ,please advise us acceptable components for substitution. High quality PCBA OEM service&Industrial pcba