Aluminum alloy chain block has the following characters:
1. High strength, high plastiacity aluminum alloy box makes the strength improved greatlly, at the same time, keep the light weight;
2. Two velocity and the short handle make the poeration labor saving.
3. 360 rotating handle provid various operation mode in limited space.
4. Sprocket wheel which can rollover freely in neutral position, makes sure the chain to move fast and easily.
5. Fully enclosed, automatic control system makes the brake clean and dry, at the same time, guarantee the work safe and reliable.