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.

钢丝绳索具在使用前必须先试吊，再正式起吊。先择吊点应与吊重重心在同一条铅垂线上。

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.

钢丝绳索具在使用前必须先试吊，再正式起吊。先择吊点应与吊重重心在同一条铅垂线上。

youdao