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special ultra-high chromium grinding ball for mining

Product Category: Equipment and accessories, other

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Product Introduction

The hardness of the steel ball determines the wear resistance, and the hardness difference between the surface and core of the grinding ball determines the circular and crushing rate. The smaller hardness difference between the inside and outside, the lower circular and crushing rate.The national standard requires that the hardness difference between the surface and core is less than 3HRC. Our patented products , the surface hardness is 59HRC while the core hardness 58.8HRC, the difference is co

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