Henan Hongyu Industrial Equipment Group Company, formerly Nanle County Machinery Plant, was established in 1953. With a total registered capital of 66 million Yuan and employees of 380, it covers an area of 120 thousand square kilometers. The company specializes in the development, manufacturing and sales of Class â?  and Class â?¡ pressure vessels, glands and boiler vessel accessories, mining equipment, electrical equipment, petrochemical equipment, sewage treatment, petrochemical equipment, sewage treatment equipment, environmental protection equipment and metallic steel member. The company is situated in the North Plain of Hennan Province, where Puyang City, the cradle of first Chinese Dragon, national model city of social development, Sanitary City and Tourism City, lies.Air Cannons, Bunker Dredging Machine, Air Storage Tanks of the company, obtained the pressure vessel manufacturing permit issued by the state, have been widely popularized and applied in coal, cement, metallurgy, electricity, steel coking and other industries in over 30 provinces and autonomous regions for years in domestic and exported to India, Indonesia, Vietnam, Thailand, Malaysia, Iran, Zimbabwe, Brazil, Saudi Arabia, Pakistan, Sri Lanka, Laos, etc. winning praise of domestic and foreign users and experts. The Air Cannons produced by the company are manufactured in strict accordance with national GB150-1998 and JC464-2005 Air Cannon industry manufacturing standard, SG R0003-2007 Simple Pressure Vessel Safety Technique Supervisory Regulation, and other national pressure vessel regulations. The company has passed ISO9001:2000 Quality Management System and European Union CE, set up a complete quality assurance system, and made quality assurance manual, according to which each process conforms to drawing requirement, is in line with strict manufacturing technology, and adopts related manufacture and detection equipment and measures. The P