The history o f development of welding equipment manufacturing in China has summarized in this paper,also,the contemporary developing level of welding equipments in the wor ld is briefly introduced.

The applies in the ocean oil gas pipeline construction bevel machine article,the belt copper liner welds and pipeline auto welding machine,welding equipment and welding procedure were introduced.

Development of automatic welding equipment with the tracking system for transverse beam in storage bank;

The design of temperature controller circumferential seam welding equipment;