... .Standard:3A , DIN, ISO,SMS 3.Item:stainless steel threaded sample valve,sample cock 1) Type:stainless steel threaded sample valve,sample cock2) Specification: 1/2"-6"3 ... /bend,cross,reducer ,union,ferrule adaptor,caps,clamp ...... Valves:butterfly valve,ball valve,check valve ...... Pumps:centrifugal pump,self-priming pump ......