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  • 2023-06-19

    The 2023 Shanghai International Tube Exhibition ended perfectly.
    All Tengdi staff would like to thank the service staff of wire & Tube China for their dedication, and even more grateful to the customers from all over the world for their presence.Hope your business is booming.See you at the next stop!
  • 2023-03-16

    The difference between square cold-formed hollow section steel and cold-drawn square steel pipe
    Square cold-formed hollow section steel is a section steel with square cross-section shape and size made of hot-rolled steel plate after cold-bending and then high-frequency welding. It is also called welded square steel pipe. The section steel has a stable production process and high precision, and
  • 2022-10-24

    Influence of Welding Pressure on Welding of High Frequency Straight Seam Welded Pipe Unit
    Only by knowing the influence of welding pressure on welding can we better operate and adjust the high frequency straight seam welded pipe unit to achieve higher efficiency. Today let's take a look at the effect of welding pressure on the high frequency straight seam welded pipe machine.
  • 2022-08-19

    Influence of Hot Rolled Coil Quality on Forming and Welding of HFW Pipe
    In recent years, using hot-rolled coils as raw materials, the process of HFW high-frequency welding + thermal tension reduction + full tube body heat treatment has been widely used to produce high-precision, high-grade steel casings. In production applications, it is found that the quality of hot-ro
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