Question

matchskick for example
combustible substance
non combustible​

Answer 1

Answer:

Examples of non-combustible materials include: a. Portland cement concrete, gypsum concrete (normally used in drywall or poured gypsum floor toppings), or magnesite (magnesium oxide) concrete having aggregates of sand, gravel, expanded vermiculite, expanded or vesicular slags, diatomaceous silica, perlite, or pumice.

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