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　　Process characteristics The main technical characteristics of spiral steel pipe:

　　A. During the molding process, the steel plate is deformed uniformly, the residual stress is small, the surface does not produce scratches. The processing of spiral steel pipe in the diameter and wall thickness of the size of the specifications have greater flexibility, especially in the production of high-grade thick-walled pipe, especially in small and medium-sized thick-walled pipe with other technology can not match the advantages to meet the user In the spiral steel pipe specifications more requirements.

　　B. The use of advanced double-sided submerged arc welding process, can be achieved in the best location of welding, not prone to wrong side, welding and not welding and other defects, easy to control the quality of welding.

　　C.ST37 Cold Rolled Seamless Carbon Steel Pipe quality inspection, so that the whole process of production of steel pipe are effective in the detection, monitoring under the effective guarantee of product quality.

　　D. The entire production line of all the equipment with the computer data acquisition system networking functions, to achieve real-time data transmission, by the central control room on the production process of technical parameters.

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