... ItemCatalogDescription1ProductsFlange,Elbow,Tee,Reducer,Cap,Cross,bend2Size1/2''--72''(Seamless :1/2''--24'',Butt Welding:26''--72'')3MaterialCarbon steel ... ,Stainless steel,Alloy Steel4Material GradesA234 WPB,A106,A53,API 5L,A105,A333Cr6,A333Cr3 etcA234 WP11/12/5/9 ... pressure fluid transportation pipeline 2. Casing Tube 3. Boiler Pipe 4. Petroleunm and natural gas industry 5. Chemistry industry ...