... , DIN, ISO,SMS, IDF etc . 5.Application range: For use in the petroleum, smelting , foodstuff ,power, papermaking, chemical, medical equipment , aviation ... . Fittings: tee ,elbow/bend,cross,reducer ,union,ferrule adaptor,caps,clamp ...... Valves:butterfly valve,ball valve,check valve ...... Pumps:centrifugal pump,self ...