塑料、青铜和钢背三层复合自润滑材料是山东省荣城市锻压机床厂研制成功的一种新型材料,它可以取代青铜等有色金属材料,制造轴套、轴瓦、导轨等摩擦件,不仅能延长寿命三位,降低成本三分之二,还可节省装配刮研 Plastic, bronze and steel back three-layer composite self-lubricating materials Rongcheng Forging Machine Tool Plant in Shandong Province successfully developed a new type of material, it can replace non-ferrous metals such as bronze, manufacturing bushings, bearings, rails and other friction, not only Three to extend life expectancy, reduce costs two-thirds, but also save assembly scraping