وصف المنتج BATTENFELD twin parallel screw barrel for pvc pipe Diameter 15mm-350mm Min.Order 1 set Materials 38CrMoAIA Discount Available 42CrMo(JIS SCM440) 9Cr18MoV CW6Mo5Cr4V2 SKD11,61 GH113,and etc. Application PP,PVC,PE,ABS,PETPC,PMMA... Payment Term T/T, L/C, WESTERN UNION,OTHERS Technical Process 1.Rough Machining Technological Parameter Roughness Ra...