... screw of injection machine types:screw and barrel Dianeter of screw: D15-D360 Mould clamping forde:250-32000KN Superhard screw for injection molding machine Screw materialsGrade A super hard screw ... of 50-60% fiberglass, Bakelite, dynamoelectric injection machine, magnetic particle ,ceramic powder, aluminum and magnesium ... than the nitrided screw. Super - hard plastic injection moulding machine screw