One of the purposes of the hook is to hook up the bucket, which is the same as the hook function of the domestic mobile garbage truck. The box can be unloaded freely by the driver operating the function keys. The second purpose of the hook is to move the box from the main body to the trailer, which acts as a bridge. It is not difficult to see that the use of special vehicles is becoming more and more diversified, and even an accessory on the vehicle is using it as much as possible. China's special vehicles are currently at an exploratory stage in terms of diversification. With continuous practice and absorption of foreign experience, diversification will become the norm in our future special-purpose vehicles. Square Nuts,Square Weld Nut,Square Lock Nut,Square Nut Bolt Suzhou Chenran Precision Fasteners Co., Ltd. , https://www.chenranfastener.com
Removable garbage truck 
Removable garbage truck
There is also this operation, garbage transfer vehicles with hooks
Mobile garbage trucks (carriage-removable garbage trucks) are common at home and abroad, and the functions of the hooks are generally the same. However, relative to the single domestic use of hooks, the use of foreign mobile garbage trucks is more flexible and richer, mainly reflected in the following two aspects.