China National Standard GB/T3091-2015 Welded Steel Pipe for Low Pressure Fluid Transportation,

Line standard scaffolding tube standard: YB/T4202-2009

Raw material (strip) implementation of standards: GB/T3524-92 welded steel pipe with the implementation of GB/T13793 standards applicable to a variety of structural parts, parts and transmission fluid pipelines, and other uses of welded steel pipe;

The GB/T3091-2015 standard applies to straight seam welded pipes for the transport of low pressure fluids such as water, sewage, gas, air, heating steam, and other structures.

GB/T13793 standard applies to all kinds of structural parts, parts and transmission fluid pipelines, and other uses of electric welded steel pipe; implementation of GB/T3091-2015 standard applies to water, sewage, gas, air, heating steam and other low-pressure fluid transportation Straight seam welded tubes for use with other structures.