The elevator is widely used in petrochemical companies, oil and gas companies, gas well, port wharf, storage tank places, chemical plants and other special places need explosion-proof.
The gas explosion-proof grade of the explosion-proof ladder produced by our company can reach the highest level of ⅡA, which is the highest explosion-proof grade at present.
We guaranee our product all origional GJJ high quality item, no fake item supply.
