Shandong Huamin Steel Ball Joint stock Co. LTD
2.High chrome casting iron balls casting iron ball casting steel ball chrome steel ball chrome ball Diameter 17mm 120mm Cr content 10 14 Hardness HRC56 63 Features High and steady hardness no breakage good wear resistance and even good wearing. 3.Grinding steel Rods in Rod Mills Diameter 60 100mm Length 2.5m 6m Hardness HRC40 55
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