... single sided pcb,double sided pcb,multilayer pcb,flexible pcb,fr4 pcb,fr2 pcb,fr1 pcb,cem1 pcb ... Solder MaskColorgreen,light green,white,black,dark brown,yellow,red,blueMin. solder mask clearance0.003”(0.07mm)Thickness0 ... 0007”(0.012mm-0.017mm)Silkscreen ColorWhite,black,yellow,red,blue,greenMin. Size0.006” (0.15mm)Electrical testingFlying ... pcb,kindly contact me for more details! red small flexible pcb