Zhang Hongren. QUESTIONS AND ANSWERS ABOUT THE PRODUCTION OF HF LONGITUDINAL-WELDED PIPES (Part 4, Straightening)[J]. STEEL PIPE, 1988, 17(4): 74-75.
    Citation: Zhang Hongren. QUESTIONS AND ANSWERS ABOUT THE PRODUCTION OF HF LONGITUDINAL-WELDED PIPES (Part 4, Straightening)[J]. STEEL PIPE, 1988, 17(4): 74-75.

    QUESTIONS AND ANSWERS ABOUT THE PRODUCTION OF HF LONGITUDINAL-WELDED PIPES (Part 4, Straightening)

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