... vessels, pipelines, heat exchangers. We can supply all kinds of seamless steel pipes or tubes, boiler tubes of pressure vessels, pipelines, heat ... : 8-273mm; Wall Thickness: 0.8-16mm.Standard and Steel Grade:Steel pipes/tubes of ASME, ASTM, JIS, GB, EN, DIN ... suitable for the steel tubes of the pressure vessel, the pipeline, the heat interchanger under low temperature. Sell Seamless steel tube & pipe