... steel tube GradeSUS201, SUS202,SUS301,SUS302,SUS303,SUS304, SUS304L, SUS310S,SUS309S,SUS316,SUS316L, SUS317,SUS317L,SUS321,SUS347, SUS347H,SUS410,SUS430,SUS904LASTM201, ASTM 202, ASTM ... , 8K, HL(Hair Line) ,PolishedThickness1mm-150mm Outer Diameter6.0mm-2500mmShapeRound,rectangular,squareApplicationChemical industry equipment, Industrial tanks, General Application Medical Instruments, Tableware ...