Hunan Great Steel Pipe Co., Ltd provides services that reduce total project cost and keep complex piping systems on schedule. Including Cutting, Rolling and Bending, Coating, Beveling, Threading, Welding and Assembly Forming.
Three ways to ensure smoothness as required when producing straight seam steel pipe1. Rolling mold: The general method of rolling mold is to press the glass powder into a glass mat
Benefits of using 45 degree elbows in construction and infrastructure projectsBenefits of using 45 degree elbows in construction and infrastructure projectsConstruction and infrast
Significance of the heat treatment process of oil casingHeat treatment is the most important process in the processing of oil casing. Whether the performance and quality of the fin
How to make hot rolled pipe ?Hot rolled (extrusion seamless steel pipe): round tube → heating → perforation → → three-roll rolling, rolling or extrusion → detached → sizing (or r
On-line testing of welded pipeWelded pipe at the factory to go through rigorous testing to ensure compliance with the provisions of pipe quality standards and user requirements. Pi
Hydrostatic test of spiral welded pipeSpiral steel pipe carrying water application to conduct a hydrostatic test, usually it is testing machine to test when trials to ensure the qu
Hot-dip galvanized (galvanizing) defectsHot-dip galvanized defects: off, scratch, plaque passivation, zinc tablets, the thick side, the marks of the air knife, air knife scratches,
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