LONGTENG SPECIAL STEEL OF CHINA LTD. - Jiangsu

Founded in 1993 and produce grinding ball more than seven years. Normally, our product can be divide to two type according to the chemical composition. One is chosed for small specifications under the 80mm and the other is for big ball which more than 90mm. Hardness of the grinding balls dropping test:Small ball HRC 60-64 more than 10000Big ball HRC 54-59 more than 6000