The materials are beryllium bronze and aluminum bronze alloy, with beryllium bronze having a working face hardness of HRC35 ° or higher and a tensile strength of δ b>105-120kgf/mm2; The working surface hardness of aluminum bronze material is HRC25 ° or above, and the tensile strength is δ b>75-85kgf/mm2; The explosion-proof performance meets the GB10686-89 standard.

Explosion proof bucket opening wrench: There are three types: single head, double head, and multi-purpose. The above two types are single head and double head, which are mostly suitable for opening and closing various metal bucket covers containing gasoline or other flammable and explosive liquids in flammable and explosive working environments such as coatings, petroleum, petrochemicals, gas, and coal mines.