... 3.material:ss304,316,316L 4.certificates:ISO9001:2008 ferrule welding union elbowFeatures:Thread: NPT, BSPT, BSPP, UNF.Connector Size: 1 ... ,ISO,etc .Nominal pressureup to 3000-6000 PSIPlace of originJiangsu,China(Mainland)Pictures:we can do follow sample or drawing, even have ... service in 24hours.Call me ,let's talk more! ferrule & welding union elbow