Explosion-proof dual-purpose spanner: one end is the same as the single-end fixed spanner, the other end is the same as the box spanner, and the bolts or nuts of the same specifications are twisted at both ends. Explosion-proof dual-purpose wrench, raw materials using beryllium bronze, aluminum bronze alloy materials explosion-proof dual-purpose wrench product specifications are: The 6-7-8-9-10-11-9-10-11-15-16-17-18 to 19-20-21-22-23-24-25-26-27 to 30-32-34-36-38-41-46-50 to 55 to 60-65-70 mm. Application scope of explosion-proof dual-purpose wrench: can be widely used in petroleum, petrochemical, oil station, oil depot, gas production, chemical industry, military, electric power, mining, electronics, railway, and other potential fire and explosion in the dangerous environment, but also machinery manufacturing and machinery maintenance essential special tools. After processing, the tensile strength of beryllium bronze products can reach more than 35 degrees, and the product of this material can be anti-magnetic, so this product is both explosion-proof and anti-magnetic products, especially suitable for the use of aluminum bronze explosion-proof dual-purpose wrench in the workplace can reach more than 25 degrees of tensile strength. Explosion-proof dual-purpose wrench is a commonly used wrench. After processing in the machining workshop, a series of tests will be carried out. Appearance quality inspection of explosion-proof dual-purpose wrench: there should be no cracks, burrs, obvious cracks, cut marks, oxide skin and other defects on the surface of the wrench, and the handle should be straight. Size inspection: the size of the wrench should conform to the relevant provisions of GB4388 and GB4389 standards. The tolerance of wrench opening and wrench hole shall conform to GB4390 standard. Explosion-proof dual-purpose wrench product specification: S6-- S55MM. It has the characteristics of reasonable design, stable structure, high material density, strong anti-impact ability, no folding, continuous, no bending, high dimensional accuracy and durability.