Puyang Donghao Mechanical&Electronic Co., Ltd.which belongs to the central plains oilfield industry companies, Was established in January 2000, and it is both a professional factory in pressure vessel design and manufacture and key private enterprises. The company is based on water treatment equipment, machinery manufacturing, new technology research and development as the core technology oriented production enterprise. The registered capital is RMB 11 million yuan. At present, there are 280employees, including 12 experienced senior engineers, 28 engineers, 36 technicians, 28 the car, grips, riveting, milling, electricity, welding, pull gold and other senior technicians. In 2009 the company was awarded puyang city municipal enterprise technology center, and in 2010 was awarded the henan provincial enterprise technology center. At present she has advanced numerical control equipment, flat making machine, lathe, milling machine, drill press, and do the crane, cutting machine, belt, electric welding machine, electric heat telefon processor and other kinds of machinery equipment more than 80 sets, and owns machine Performance testing tensile testing machine, impact test enginery, magnetic flux leakage testing instruments, ultrasonic flaw detector, hardness tester, a chemical analysis instruments, and so on more than 30 inspection, testing equipment sets. Perfect detection means effectively guarantee the product quality and after-sales service of 3 packets of commitment, won the measures good reputation in the market. It is certified for ISO9001：2000 Quality Management System, It is certified for ISO14001：2000 Environmental Management System