Goldlight Steel Ball Factory was established in 1980 in Shangdong province .The enterprise covers an area of 160,000� .At present ,it has 2,600 workers ,184 technicians including 48 senior ones .Up to now ,it has strong technical force and powerful productivity . The Company has advanced production equipment, perfect testing instruments ,such as 48 cold Tun machines , 22 4980-Vertical photosphere
