lifting hook造句怎么写

Always ensure that lifting hooks or device have smooth edges that will not damaged the eyes of the sling.

Pay attention to the speed and the position of the lifting jib and the lifting hook so as to avoid accidents.

The value includes lifting hook, spreader, the value of the load.

This paper introduces a kind of automatic lifting hook which is used to raise things with circular sections and fixed diameters. It can catch and release things automatically.