HSZ-A Chain block Features:1) Capacity from 0.5T to 30T 2) Have certificate of CE 3) Got certificate of ISO9001 4) Automatic double-pawl braking system 5) Asbestor-free brake discs 6) Drop forged hooks and hook holders to ensure superior quallity and safety 7) Chains are made of special alloy steel that is exclusively 8) More thickness of sheet cover,gear cover and side plates for good quality 9) The static test is 4 times of capacity,and running test is 1.5 times of capacity one by one 10) Famous in Europe and America