... of Shandong Jingta Steel Co., Ltd, its product plant located in Tengzhou City, Shandong Province. Shandong Zerchen Energy Technology Co., Ltd ... have got a certificate of ISO9001:2000 quality management system in 2001 which is one of the large steel structure companies ... powder zinc phosphate, 150 microns. Finishing paining is epoxy powder in gray, 125 microns. More projects, please go to our website: ...