1.Standard:ASTM/AISI/GB/DIN 2.Material:201,304,304L,316,316L ,410S 3.Diameter:1-350mm 4.Length:2-6m 1.Standard::ASTM /AISI/GB/DIN2.Material:201,304,304L,316,316L3.Diameter:1mm-350mm4.Length:2m-6m5.Surface:NO.1/BA/2B/2D/NO.3/NO.46..We can supply Mill Test Certificate.7.Our company's trading ability is inspected by BV certificate and we get the BV certificate.