55mm Single screw and cylinder for injection moulding machine(L/D 18.2) Diameter 55mm Min.Order 1 set Materials 38CrMoAIA GH113 SKD61 Discount Available Application EVA,ABS,PMMA, PC,PVC,UPVC Payment Term T/T, L/C Technical Process 1.Rough Machining 2.Quenching and Tempering 3.Finish Machining 4.Nitriding 5 Spraying and welding with alloy power 6.Screw polishing Technological Parameter Roughness Ra 0.4um Hardness of Quenching and Tempering ...
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