The Thermit process was used and its introduction followed a visit by a deputation sent to Glasgow to inspect this process.
2.
Police found several legally registered weapons in Hogshire's apartment, along with what they described as a Thermit grenade but what Hogshire said was merely for fireworks.
3.
The long rails had to be welded together ( or to adjacent track ) using a site welding process; and, after initial experimentation, the proprietary Thermit welding process was used.
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