In larger sizes, force pipes together by means of a "pull lift" or lever hoist attached by slings around the outside of the pipes.

对于较大口径的管道，则可通过用环绕在管道外壁的绳索固定的“拖拉”或者杠杆将管道组对起来。

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In larger sizes, force pipes together by means of a "pull lift" or lever hoist attached by slings around the outside of the pipes.

对于较大口径的管道，则可通过用环绕在管道外壁的绳索固定的“拖拉”或者杠杆将管道组对起来。

youdao