日韩高清毛片在线播放_高黄高潮AV免费观看_成年双人啦啦操全套软件_欧美日韩国产污视频_国产麻豆精品一级片_永久免费无线在线看黄无广告_最近最新2019中文字幕1_午夜的女人视频麻豆_一区二区国产欧美日韩_黑人黄色视频网站

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