Shandong Zhongtian Industry Co.,Ltd (Former Name: Jinan Dinghan Building Materials Co.,Ltd, and Jinan Donghan Building Materials Co.,Ltd) is engaged in the production of Grinding Balls, Grinding Bars, Grinding Materials Liners and the Crusher Parts in the past 20 years,which are applied in the fields of Cement Plant, Metallurgical Industry, Mines and Power Stations etc. which are exported to some countries in South East Asia, South America, South Africa and European areas.We have equipped the Advanced Automatic facilities for the production of the Forged Grinding balls and Cast Grinding Balls, we also installed the International Level Standard Rotary Cutting, Roll Forging equipments to produce the Grinding balls, which is of most important position and plays a decisive role at this line in China.