In the middle of August, the heat treatment properties of X65QO submarine line pipe produced by HYST in a new round were all qualified, which contributed to the development of deep water oil and gas resources in the South China Sea. HYST is the only submarine line pipe supplier for the main pipeline of Lingshui 17-2 gas field project, the first deep water self-operated large gas field in China. It provides all the submarine line pipes for the main pipeline transporting submarine natural gas of this project.

This is another major breakthrough of application of Hengsteel marine engineering pipe in the deep sea after being applied in "Blue Whale No. 1".It demonstrates Hengsteel’s strong strength and advantage in the field of marine engineering pipe, and manifests its responsibility of safeguarding national energy security.