Zhang Caian, Lei Shenghuai, Chen Guowen. ANALYSIS OF WRINKLE OCCURRENCE ON THE WORKING CONE OF PIERCING PLUG[J]. STEEL PIPE, 1992, 21(4): 28-31.
    Citation: Zhang Caian, Lei Shenghuai, Chen Guowen. ANALYSIS OF WRINKLE OCCURRENCE ON THE WORKING CONE OF PIERCING PLUG[J]. STEEL PIPE, 1992, 21(4): 28-31.

    ANALYSIS OF WRINKLE OCCURRENCE ON THE WORKING CONE OF PIERCING PLUG

    • The causes on wrinkle occurrence on the working cone of piercing plug are analysed in detail, and the measures to prevent wrinkle occurrence are put forward.
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