PCB:material FR1,CEM-1,FR4,UL94V0,RoHS Component:IC,resistance,cap,capacitor,male connecdtor PCBA:DIP,SMT,BONDing PCB:material FR1,CEM-1,FR4,UL94V0,RoHSComponent:IC,resistance,cap,capacitor,male connecdtorPCBA:DIP,SMT,BONDingAdd oil to prevent water and muddyadd silicone glue socar systerm PCBA