... testing Various types base material to PCB processing:High TG board, high frequency board(ROGERS,TEFLON) halogen-free board (FR-4,CEM-1,CEM ... )Electronic PCB board 2)PCB, printed circuit board, 3)High quality,ROHS 4)Green solder mask We offer as following Layer:1-22 Layers rigid PCB ... Base Material:FR-1, FR-2, CEM-1, CEM-3, FR-4, Aluminium base Board Thickness:0.2 ...