... in PCB manufacturingWelcome To HCX Shenzhen Hengchengxin Circuit Board Co.,Ltd Detailed specification of PCB manufaturing capacity: ... white,black,matte black,dark brown,yellow,red,blue,transparentMin. solder mask clearance0.003”Thickness0 ... .0004”SilkscreenColorWhite,black,yellow,red,blue,greenMin. trace width0.005”Min. size0. ... Immersion Gold PCB With Gold Finger