1.FR4 rigid double side pcb board 2.orange solder mask ,white silkscreen 3. PCB manufacturer 4.short delivery time Why do you choose ... such as project, amplifier, CCTV, power supply, GPS, Safety ,camera, set-top box, medical device, Telecommunication, LED light and so ... meet RoHS standards.ROHS:A001C100827049001-2SGS:CANEC1000312001UL:E320045 CEM pcb board with immersion gold in China__manufacturing