... copper alloy explosion-proof tool for the applicability of the performance (such as refineries switch to gas stations, gas production ... rather than cast, guaranteeing maximum tensile-strength. 3. We supply a wide range of non-sparking tools such as socket ... , wedges, punches, chisels, wrecking bars, pinch-bars, screwdrivers, shovels, chain Hoist, etc. 4.The tools can efficiently avoid rising spark ...