The cylinders and the screw stems of the extruder are made of high quality alloy steel with optimum hardness and strong corrosion resistance after nitrogen treatment and precision finishing . the auxiliary machine has a plat from working table for making operation easy and is equipped with bubble stabilizing ring 挤出机的机筒螺杆均采用优质合金钢，经氮化和精密加工。具有最佳的硬度和耐腐蚀性。辅机设平台工作台，使操作更方便，并配置定泡圈。
