Construction in China is all concrete. When you buy an apartment there you have to go in and install all the plumbing and electrical yourself. Sister lived in Hong Kong and their units carry concrete drills and piercing nozzles since the fire is usually contained within the unit of origin. Yeah the drones are just a pr stunt.
Fires spreading between units from outside cladding or other accessories is a known phenomenon though, see the grenfell fires in the UK. Having the capability to slow or stop that progress could be useful in those scenarios.
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u/bigronnigans 13d ago
All well and good for a high rise facade fire. Still no good for compartment fires.