CHAENG (Xinxiang Great Wall Machinery Co., Ltd), the first level milling supplier in China, founded in 1958, with 61 years of experience, has sold at least 80 plants, 3000 ball mills, 2000 rotary kilns, 1000 mills vertical and at least 80,000T castings per year. It makes complete turnkey projects of cement and lime plants, cement grinding and mineral slag.