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产品名称：异形滚子，销子 special cylinder pin
材料：Gcr15，52100或SUJ2，也可按客户要求用硅锰钢和不锈钢，
硬度：HRC60-65
热处理：符合JB/T 1255的规定
表面粗糙度：Ra0.2，超精后
产品适用范围：汽车，摩托车，童车，纺织机械等行业
product name: special type roller, special type bearing roller, flat roller
Raw material: bearing rollerGCR15, 52100, SUJ2 100Cr6
dia range: 1-60 mm
Hardness: HRC 60-65
Roundness: Ra 0.2, or under 0.05 after superfinishing
Apply in:all types of bearing, machine, automobile and motocycles, etc