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
cement plant high chrome casting grinding steel ball / ISO 9001-2008 . Feature of our grinding balls as follows: 1) High Hardness: Surface hardness: ...