Russia-China eastern natural gas pipeline project is one of the four major energy channels in China. The total length of the pipeline is 5111km. The project is divided into three sections: North, middle and south. After the whole pipeline comes on stream at 2023, the annual supply of natural gas will reach 38 billion cubic meters. Russia-China eastern natural gas pipeline enters from Heihe city of Heilongjiang Province and ends in Shanghai, passing through 9 provinces (districts and cities). Among them, 3371km of newly-built pipelines and 1740km of existing pipelines are used.

On June 30, 2015, The chinese section of Russia-China eastern natural gas pipeline started. On October 16, 2019, the pipeline frome Heihesection to Changling section (North Section) was completed. The total length is 1067km, realizing the connection with Harbin Shenyang, Qinshen and other existing natural gas pipelines. The northern section was officially put into operation on December 2, 2019.

Russia-China eastern natural gas pipelineproject is an important national energy strategic channel project, which adopts 1422mm super large diameter X80 high grade steel pipe; the pressure is as high as 12 MPa, which is a long-distance natural gas pipeline with full automatic welding. Since the opening of the project, xionggu’s automatic welding machine has been continuously put into engineering application .These equipment mainly include A-810 pipeline automatic internal welding machine, A-300x single torch pipeline automatic external welding machine, A-610 double torch pipeline automatic external welding machine and C-48 / 56 automatic pipe facing machine. All the equipments are independently developed by Xionggu company for many years.

At present, 70% of the automatic welding equipments are anufactured by Xionggu company which was been used atRussia-China eastern natural gas pipeline project. Xionggu automatic welding machine has been widely praised by various pipeline engineering companies, for the High reliability,Good stability ,and over 95% pass rate of welded joint .Xionggu automatic welding has made contributions to the national key large-scale pipeline projects.