Hunan Great Steel Pipe Co.,Ltd is a world-class production and service provider of submerged arc straight seam welded pipe as the first subsidiary of Shinestar Group. Hunan Great Steel Pipe Co.,Ltd pays more attention to in the pipeline engineering research areas as a pioneer of China Petroleum Pipeline & Gas Pipeline Science Research Institute, Such as: the use of oil and gas pipelines, pipe welding technology innovation, high-end plumbing materials research and development, as well as special tools technological innovation pipeline construction, pipeline corrosion protection science and technology research, science and technology research pipeline non-destructive testing, pipeline quality assessment, and research pipeline standards and so on. In the future, we will try to use new technology to create new business value and to contribute to research and product development for the pipeline.
                                          Shell Oil Company
 PEMEX
 Sinopec
 Total S.A
 Petrobras
 BP
 PDVSA
 AMOCO
 Kiewit
 Royal BAM Group
 Skanska
 Hochtief
 Ramboll Environ
 Cardno Inc
 SNC-Lavalin Inc
 WorleyParsons Ltd
 Diamond Offshore Inc
 KCA DEUTAG
 Atwood Oceanics
 Seadrill
 Reykjavík Geothermal
 WALKER® 
 RusHydro
 Georgia Power