Standard ASTM, GB/T6479-2013, GB/T150.2-2011, GB/T18984-2016 elo A333/334Gr.1, A333/334 Gr.3, A333/334 Gr.6, Q345B/C/D/E , 09MnD, 09MnNiD, 16MnDG.
Standard JIS G3461 JIS G3462 Ohun elo O ti wa ni lo fun igbomikana ati ooru inu & ita tube Main Steel Tube Grades STB340, STB410, STB510, STBA12, STBA13, STBA20, STBA22, STBA24.
ASTM A179——– Standard ti Awujọ Amẹrika fun Idanwo & Awọn ohun eloTi a lo fun oluyipada ooru tubed, condenser ati iru awọn ohun elo gbigbe ooru; Ipele akọkọ: A179ASTM A192——- Standard of American Society for Testing & Materials is used for high pressure min.Odi sisanra laisi erogba irin igbomikana ati tube Superheater;Ite akọkọ:A192