thermit welding flint gun 1. manufacturer 2. CE UL ISO9001 3. we supply high ... rod, exothermic welding mould, exothermic welding powder, grounding electrode, GEM and so on. Flint gun Jsbound grounding lightning protectionXi’an Jsbound Technology ... , subway, petrochemical industry, communication system, military industry and others. flint gun is required to started the reaction.