A loader is a type of construction equipment (engineering vehicle) machinery that is primarily used to "load" material into another type of machinery (dump truck, conveyor belt, rail-car, etc.).
Normally, loader crane dealers custom-fit a frame of steel bar on top of a truck chassis to mount the crane.
通常， 装载起重机经销商随俗地在卡车底盘顶部设置铁杆梯架登上起重机。
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HDSZ type hopper side cement bulk loader used to load bulk cement or other power materials. it is erected at the bottom of cement hopper to load material of tank shape container on truck.