Jinan Zhongwei Casting And Forging Grinding Ball Co.,Ltd
Jinan Zhongwei Casting And Forging Grinding Ball Co.,Ltd 18 Years focus on development and production of grinding media Casting quality with strength, Forging glory with integrity
High quality Mining Special Use Grinding Steel Balls from China Forged Ball: Chemical composition Name Material Chemical composition Hardness C Si Mn S P Cr HRC forged ball B3 0.58-0.66 1.6-1.9 0.65-0...