Explosion proof hoist series take the aluminum bronze &
beryllium bronze as roughcast and the surface of chain block adopts
to H62 copper alloy material. Explosion proof hoist series apply to
the flammable occasion, such as chemical industry and at sea works.
The transmitting gear reaches super abrasive resistance after
high-heat treatment, and can be widely used in Oil, petrifaction,
oil station, oil depot, gas production, chemical industry, war
industry, electric power and mines, etc.