Triangular hand -stubborn gourd and round hand stub gourd are a manual lifting tool. Triangular hand -stretched gourd refers to the appearance of the hand pour. Hand -pouring gourd is a mechanical structure, just use it simply according to instructions. There are many types of hand -pour gourds, and the structure will be slightly different. It is suitable for factories, mines, construction sites, agricultural production and docks, docks, warehouses, etc. as installation machines, and hang cargo and loading and unloading vehicles. It is especially suitable for open -air and powerless operations. Hand -streaming can be used with various types of hand -pulling monochrome to form a handle to pull up a heavy transport car. It is suitable for overhead transportation of the monorail.