... . is A1052Name MaterialBrandPerformanceApplicable scopehammerAL-CUZBZGnon sparkinggas station Small oil depot2,hammer In flammable gas concentration7.8%ethylene space for use are ... ensure safety.Impact, friction, sparks do not drop sparks.3,hammer Face hardness:HRC25°4,Tensile strengthδb75-85kgf/mm25,Applicable ...