Cutting blades being parts of machines for cutting or perforating predetermined patterns from paper, leather, plywood board and plastic board; cutting blades being parts of machines for cutting or perforating predetermined patterns from metal foil, cloth, non-woven cloth, rubber, liquid crystal display panels and flexible printed circuit boards; blades being parts of machines for stamping paper, leather, plywood board and plastic board; blades being parts of machines for stamping metal foil, ...