... UL ,ISO9001 appr Professional multilayer pcb factory Brief introdution of our company Suzhou Xinke Electronic Co.,Ltd ... -1,CEM-3Board Cutting Max. number of layers8Min. thickness for inner layers (Cu thickness are excluded) ... black,dark brown,yellow,red,blueMin. solder mask clearance0.003”(0.07mm)Thickness0.0005”-0.0007 ... 1/2+-0.1mm)V-cut angle15°,18°,30°V-cut Shapeline,hole,V-shapeSurface FinishHASL,HASL ...