... 610mm 3.ISO9001,ISO14001,CE 4.carbon steel 5.high quality.competitive carbon steel bend with ISO CE certificatesItemCatalogDescription1ProductsFlange,Elbow, ... /2''--24'',Butt Welding:26''--72'')3MaterialCarbon steel,Stainless steel,Alloy Steel4Material GradesA234 WPB,A106,A53,API 5L ... 3. Boiler Pipe 4. Petroleunm and natural gas industry 5. Chemistry industry 6. Electric industry ANSI alloy steel pipe