• Bdfor using the sling, it should have a test. The shoice for the lifting point should be on the same line with the center of gravity.

    钢丝绳索具使用必须,再正式起吊。先择吊吊重重在同一条铅垂线

    youdao

  • Bdfor using the sling, it should have a test. The shoice for the lifting point should be on the same line with the center of gravity.

    钢丝绳索具使用必须,再正式起吊。先择吊吊重重在同一条铅垂线

    youdao

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