France POLYSOUDE was founded in the 1960s and specializes in the research and development and production of rail-type pipe welding machines, pipe plate welding machines, as well as other automatic argon arc TIG welding equipment, automatic surfacing equipment, robot welding systems, plasma welding systems. . The products are widely used in nuclear power, thermal power, aerospace, petroleum and petrochemicals, pharmaceutical and food machinery/engineering industries.

French POLYSOUDE SAS established a wholly-owned subsidiary in China in 2004 - Baolisudi Welding Technology (Shanghai) Co., Ltd., which is responsible for POLYSOUDE's sales and after-sales service in the Asia-Pacific region.