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.... 2)Best material: HRC45 we purchase from domestic carbide factory ,grade YG10X from ZCCCT HRC55 we buy from Taiwan CB-CERATIZIT, the grade is WF25. HRC60-65 we use the grade K44EF from AF Germany or HB30F f...
Product Description Advantages and Features 1.ZhongHong bearing Co., Ltd. has its own factory. We make sure to offer you the most competitive price. ZhongZhong bearing Co., Ltd. has a professional R&D team an...