Henan Hengan Heavy Machinery Co., Ltd. (Hengan Heavy Industries) is one of the large enterprises with the collection of research, production, distribution and service. It can produce a full range of milling equipment, crushing equipment, beneficiation equipment, sand and gravel facilities, coal equipment, aluminum / magnesium equipment. The main products of our company conclude: hammer crusher, conveyor line, hoist series, grading machine, a new type of sand making machine, vibrating screen series, sand washing machine, raymond mill series, magnetic separator series, SF type flotation machine, the third generation of sand making machine, high pressure suspension mill roller series, ball mill series, sand making machine series, aerated concrete series, roll crusher, impact crusher, and machinery equipment and so on. The company is located in the national equipment manufacturing base, and it covers nearly 45,000 square meters, of which the buildings occupies 20,000 square meters. Its domestic sales exceeded 150 million yuan, and the export volume reached $ 6,800,000. Our company also passed the ISO9001 international quality system certification in the year of 2003. The enterprise is the research base of Henan Engineering University, the doctoral workstation and practice base. It also possesses modernized office environment and a large number of senior personnel in management and technical research, including 25 senior engineer and 200 technical personnel. It has a variety of advanced production, testing and test equipments, and the procedure of production is stricty checked. The device`s main parts and wearing parts are made of high quality wear-resistant materials by advanced processing technology, which makes the device durable and wearable.