stainless steel union 1.Material:stainless steel,SUS304,316 2.Threaded:DIN,BSPT,NPT 3.Size:1/4"to 4" 4.Standard:ISO4144 ... ,304,316 2.Threaded:DIN,BSPT,NPT3.Size:1/4"to 4"4.Standard:ISO4144Packing:WOODEN CASESModel NO.:14Standard:ASME B16 ... :CHINATransportation:SEA OR AIRConnection:WeldingMaterial:Carbon SteelShape:EqualTechnics:cast Type:union