Quanzhou sanzhong heavy industry co., ltd of Quanzhou City is an integrated engineering machinery parts production enterprise. There are more than a dozen provincial offices such as Shandong, Shenyang, Guangzhou, Beijing, Hangzhou,Hefei.Nanning,Chengdu,Wuhan,Haik- ou.Chongqing.Guiyang,Jiangxi,Kunming and Harbin. The company has been committed to a variety of Komatsu, Carterpillar, Hitachi, Sumitomo, Kobelco, Daewoo, Kato, Hyundai and other imports, domestic excavators, bulldozers of the heavy wheel, guide wheel chainwheel, drive teeth, chain rails, four-wheel The bottom parts and pins, shafts, Research and development, manufacture and sale of high strength and vulnerable parts such as sleeves and bolts.