... Extruder screw design for 65/132 conical double screw barrel 1.Material:special alloy steel 2.Good customer service Extruder screw design for 65/132 conical double screw ... 60/125, 65/120, 65/132, 68/143, 70/135,70/140, 75/150, 80/143, 80/156, 92 ... designed according to different products and ingredients. Extruder screw design for 65/132 conical double screw barrelMaterial: 38CrMoAlA; SKD61; SKD11; 40Cr ...