... seamless pipes 1.Standard:Austenite,GB,AISI,DIN,JIS 2.Specification:Cold draw OD6-630mm WT 1-40mm Stainless steel seamless ... ),DIN(DIN 17440,DIN 17224,DIN17458),JIS(JIS G 3463, JIS G 3448)2.Specification:Cold drawOD6-630mm WT 1-40mm Stainless steel ...