·The expanded rock explosive are nwe type industrial explosives, possessing the characteristics of high working efficiency, small amount of toxic gases, and safety in storage, transportation and use. The expanded rock explosive is suitable for using in hard rock stripping, tunnel excavating, open-ari mine blasting, port construction, exploiting of metal, non-metal. The expanded coal mining explosive No.2 and No.3 are suitable for using in coalmines. |