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
PRODUCTS NAME: HOT ROLLING STEEL BALLS MATERIAL: B2 STEEL SIZE: DIA 25-150MM CHEMICAL ELEMENTS: SPECS Chemical composition 60Mn Steel C:0.72-0.92,Mn:0...