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 hardness and good wear resistance Steel Forged Grinding Ball FORGED STEEL BALL CHEMICAL ELEMENTS AND HARDNESS Material Chemical elements C Si Mn ...