... , electronic keyboard) High quality and low price rigid single sided computer keyboard board, circuits, electronic keyboardThis article is best selling line. Our ... Production Capability for Rigid PCB:1) Layer: 1,2,multilayer2) Board finished thickness: 10%3) Material: FR-4, CEM-1,CEM ... TG, FR4 Halogen Free,FR-1,FR-24) Max. finished board size: 1500mmx500mm 5) Min. drilled hole size: 0.3mm6) Min ...