... 38CrMoAlA; 3.Nitriding +120hours 4,competitive price 5.injection molding machine scerew ***Material1)38CrMoALA(JIS SACM645)2)42CrMo( ... Various high quality alloy steels ***Technical Parameter for injection molding machine screw & assembly partsScrew Diameter12mm-500mmScrew Alignment0. ... barrel and injection screw barrel for Haitian, Demag, Engle, Klaus-maffei, Nigro bossi, arburg,NPM, BOY, Husky, Fanuc, ...