Quality forged steel balls to do in Jinan Public dimension -13,953,120,393 Gong Xuemei (Business Manager) E-mail: 13953120393@163.com zw-1: c: 0.60-0.70 si: 0.17-0.37 mn: 0.9-1.2 HRC: 58-63 zw-2 : c: 0.68-0.85 si: 0.17-0.37 mn: 0.68-0.88 HRC: 58-64 zw-3: c: 2.0-3.2 si: <1.0 mn: 0.5-2.0 cr:> 15 HRC: 58-64 zw- 4: c: 2.0-3.2si: <1.0 mn: 0.5-2.5 cr:> 10 HRC: 58-63 Jinan Public Forging Steel Co., Ltd. is located in Victoria Song poetess Qingzhao's hometown - the beautiful scenery of Shandong Province, Jinan Zhangqiu. 50 km away from Jinan airport, 260 km away from Qingdao port, convenient transportation, location. Our main products are forged steel ball, ball casting, casting segment, grinding rods. The company passed the ISO9001 international quality system certification. The company has import and export rights, Southeast Asia, Australia, Middle East, South America, Europe and other dozens of countries. Company advanced production equipment, experienced technical staff, design and production capacity to the domestic first-class level. Jinan Public dimensional ball to solve your worries