name: pipe material: carbon steel A234 WPB ANSI B16.9 standard: ASTM, ASME, GB, JIS, ... ''(Seamless :1/2''--24'',Butt Welding:26''--72'')3MaterialCarbon steel,Stainless steel,Alloy Steel4Material GradesA234 WPB,A106,A53,API 5L,A105,A333Cr6 ... pipeline 2. Casing Tube 3. Boiler Pipe 4. Petroleunm and natural gas industry 5. Chemistry industry 6. Electric industry JIS stainless steel pipe