... and Tianjin, enjoying good environment and convenient transportation, capable of chemical analysis,metallographic examination,physical testing,nondestructive inspection and ... -Cold drawn/0.035" - 0.875"Length-customizingSteel Grade-Gr.A B C , A53 A106 ,A333, A192, A179, A213, ... -ASTM API 5L, 5CT,DIN17175 ,DIN1626, JIS G3461,3456 ETCCarbon Steel Seamless Butt Weld Pipe Fittings as per ASTM A234 Gr. WPB ...