Explosion -proof electric gourd guide wheels, crane wheels, nuts, bracelet wheels, support rods, hood shells, left and right wall plates are made of aluminum and bronze. Explosion -proof electric gourd has high strength and abrasion resistance, as well as good high temperature and corrosion resistance and antioxidant. The lifting chain is made of manganese steel nickel -plated copper alloy, and the zipper is made of H62 brass. The chain friction does not cause adverse reactions such as spark explosion. The hook beam splint and hook are made of aluminum bronze. The long lock board is made of H62 brass. The upper and lower hooks are forged and have a safety card to make it easier for goods to fall off. The hook of explosion -proof electric gourds is strong, it is not easy to deform, and it is not easy to break.