亚洲另类激情综合偷自拍图_久久无码中文字幕_亚洲视色一区二区_午夜成人片在线观看免费_歐美一級片在線觀看_韩国免费乱理伦片在线观看_草莓视频App下载平台_AV中文字幕不卡一_中文字幕国产亚洲2019_AV天堂东京热无码专区

News

What is the correct operation method of lifting be
 
How to use the lifting belt correctly? Today, we'll give you a detailed introduction to this topic


1. When in use, the lifting belt is directly hung into the force center of the hook and at the hook tip.


2. It is not allowed to cross, twist, knot or twist the lifting belt in use, and it should be linked with correct lifting special links.


3. The use process must be directed by personnel with relevant qualifications, and overload use is strictly prohibited.


4. During the operation of two lifting belts, the two lifting belts shall be directly hung into the double ditch, and each belt shall be hung at the symmetrical stress center of the double hook; When using the four sling, each two sling shall be directly hung into the double hook. Pay attention to that the inner sling shall not overlap and squeeze each other, and the sling shall be symmetrical to the force center of the hook.


5. When encountering goods with sharp corners and edges, the sling must be protected by sheath and corner protection, so as to prolong the service life of the sling and eliminate potential safety hazards.

Next:How to maintain coil spreaderLast item:Scrap standard of flexible sling