He high quality non-sparking tools are stricktly manufactured, and enjoy world-class top quality, great flexibility and durability. There are two kinds of material of non-sparking tools: Beryllium copper alloy (non-sparking and anti-magnetism) , 30-40 hrc And aluminium bronze alloy (non-sparking) , 20-30 hrc These tools can efficiently avoid rising spark when tools strike, rub or collide with target in explosive atmosphere or flammable vapours. Thaerefore, non-sparking tools are widely used in oil and gas works, petro-chemical plants, explosive manufactories, mines, shipyards, pipeline construction and many others