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Double Open End Wrench non sparking
Non-sparking tools. They are mainly used in hazardous environment where flammable and combustible vapors liquids gas dusts are present, such as petroleum industry,chemical industry, power generation,railroad,and mining ects.These tools can avoid to rise sparking when tools strike,
rub or collide with target in explosive atmosphere. There is two kinds of material, Beryllium Copper alloy and Aluminum Bronze.