... Specification:45/90, 45/100, 50/105, 51/105, 55/110, 55/120, 58/124, 60/125, 65/120, 65/132, 68/143, 70/ ... we can supply below:PVC/PE Film Blowing Screw; Blow Molding Screw; PS/PE/PP/ABS Sheet Extrusion Screw; PE Aluminum Plate;PPR Pipe ... important parts for plastic extruders and injection molding machine,they affect the machine performance and quality directly,therefore,QunYing established quality ...