... quality,ROHS 4)HAL lead free board Base material:FR-4,FR-1.CEM1.CEM3,Aluminum Core board Surface processing type:HASL/ plating ... pressure testing Various types base material to PCB processing:High TG board, high frequency board(ROGERS,TEFLON) halogen-free board (FR-4,CEM-1 ... -1, FR-2, CEM-1, CEM-3, FR-4, Aluminium base Board Thickness:0.2/0.4/0.6/0.8/1 ...