... .3) steel grade: 20A, 20, st35, st45 10#,20#,45#,16Mn, ST35,ST37,ST37.4,ST45,ST52,ST52.4,4) ASTM,DIN ... randomSteel Grade10#,20#,45#,16Mn, ST30Al,ST35, ST37,ST37.4,ST45,ST52,ST52.4,E155,E195,E235,E255,E355,etcStandardsDIN2391,DIN2445 ... ; L/C at sightDelivery time30-60 days depend on Quantity High Pressure Oil Tube