... .Material:201,304,316L,309S 4.TIG,PLASMA stainless steel tube Application: heat exchanger, boiler, condenser, pressure vessel1) Standard: ASTM A249 ... , 316, 316L, 321, 309S,310S etc.5) Surface: bright anneal6) Test: eddy current / hydrostatic7) Packing: each in a plastic bag,then ...