... a wall thickness of 2-25mm Out Diameter 4-508 mm Wall Thickness 1.5-80 mm ... stainless steel pipe with paint. Size:O.D.: 4 - 508mm W.T.: 1.5 - 80mm Grades: TP304 ... GB, DIN, JIS, T14975, etc.SpecificationO.D: 1/4" - 32" (inch) (4-508 mm)W.T: SCH5S, SCH10S,SCH40S,SCH80S,SCH160S, ... bundles to be covered by polythene & strapped securely .4.if require ,then pack into wooden box.CertificateISO 9001 ...