... D15-D360 Mould clamping forde:250-32000KN Superhard screw for injection molding machine Screw materialsGrade A super hard screw Base material ... is suitable for processing of 50-60% fiberglass, Bakelite, dynamoelectric injection machine, magnetic particle ,ceramic powder, aluminum and magnesium powder, ferrous ... times longer than the nitrided screw. Super - hard plastic injection moulding machine screw