... 2. K7&K9&K8 3.ling according to ISO4179 8 ductile iron pipe Standard: JIS, AISI, ASTM, GB, DIN, ENPlace of Origin ... .5mm-40mmOuter Diameter: 1.0mm-900mmProduct name: ASTM 304 High pressure steel prof...tolernace: normal standard toleranceShape: round,square, ... :8-25 days after payment SpecificationsASTM 304 High pressure steel profiles stainless steel pipe 1.Material:321/321H, 304/304L, ...