For each steel core made by Hein, it is checked by the world's most advanced inspection equipment. For big diameter steel cores, the teeth are machined by milling, then heat -treated by advanced technology. The hardness range of the same piece does not exceed 1.5o and horizontal grinder machines all products.
Contact Detail
Address:
No. 69,Beiyuan Two Road, Rizhao City, Shandong Province, China
