Qingdao Itsen Metal Products Co.,Ltd is a leading producer in valves control system for water, gas and oil.ITSEN is specialized in design,research and production of all industrial valves.ITSEN products cover the following industry area: Water supply system, water treatment, food, chemical, cement, air- conditioning systems, industry engineering, nuclear power, papermaking, Petrochemical Industry, pharmaceutical, Powder Industry, steel industry, sugar refining, textiles and so on. ITSEN has wide variety of industrial valves, including following main products: 1.Fire Protection Valve( UL/FM Certified) 2.Gate Vave(DIN, BS,API,ANSI,MSS,JIS) 3.Ball Valve (DIN,API,ANSI,JIS) 4.Butterfly Valve (DIN,BS,API,ANSI,JIS) 5.Globe Valve (DIN,ANSI,API,MSS) 6.Check Valve (DIN,ANSI,API,MSS) 7.Y strainer (DIN,ANSI) 8.Air Valve DIN 9.Foot Valve DIN