thin-wall stainless steel water pipe (welded) polised inner and outer can be used for transfering water, gas, fluid and so on ... C), etc, and also can refer to seawater, gas, air, medical gas, and so on.Packaging: inner plastic bag each pipe ... GradeApplication0Cr18Ni9(304) Pipes for drinking water, hot-water, gas, air, medical gas, etc. 0Cr17Ni12Mo2(316) the workplace required higher corrosion ...