Conical Twin Screw and Barrel for PVC Pipe Machine 

Conical Twin Screw and Barrel for PVC Pipe Machine Specification: 45/90, 45/100, 50/105, 51/105, 55/110, 55/120, 58/124, 60/125, 65/120, 65/132, 68/143, 70/135, 70/140, 75/150, 80/143, 80/156, 92/188, 105/216, 110/220 The above are our standard specifications, we can customize according to customers' requirements. The compression ratio of screws can be designed according to different raw material and products. Conical Twin Screw and Barrel for PVC Pipe Machine Material of Screw and Barrel: Raw Material The Finished Product Processing Requirements 38CrMoAlA, SACM645, 42CrMo Nitriding Treatment 42CrMo, AISI 4140 Chrome Plating Hardness Layer 4Cr5MoSiV1, SKD-61, SKD-11 Spraying Bimetal Alloy Layer And Nitriding Treat…