Aluminum alloy tights are 6 tons of 1.5 meters. It is a chain -type spiny wheel tights that can be operated by pulling the handle. Also known as aluminum alloy hand pulling gourd. With three gears rising and falling aircraft and decline. If you need to perform an ascending operation, just pull it to the corresponding gear. Based on the instructions, just use it. It can be trapped tightly and can be hanging vertically. Simple operation and easy to carry. The main body is made of aluminum alloy, and the chain is used in alloy steel. It is to use manpower to improve the traction heavy objects, and you must not extend the operating handle at will; the remaining handles should be freely followed during the operation, not to be blocked. A proper tonnage gourd must be selected according to the size of the load.