Seamless stainless steel round tubes are made of ingot tubes or solid billets, which are usually perforated to produce capillary tubes for hot rolling, cold rolling, or cold dialing.The biggest advantage of stainless steel pipe is its perfect anti-rust work, and the mechanism of preventing rust is to generate a layer of dense oxide film on the surface of the steel pipe, isolated from the air, so that it can not contact with oxygen, can not react, protect the steel pipe, so that it will never rust