ASME SA269 Tubing . Tubos India is one of the large manufacturers for high quality ASTM A269 / ASME SA269 Tubes . This specification covers grades of nominal-wall-thickness stainless steel tubing for general corrosion-resisting and low- or high-temperature service. We have stock of ASTM A269 stainless steel seamless tubing and welded tubing astm a269 tubeASTM A269 / A269M from china factories.