Fires start off each time a flammable or even a combustible substance, together that has a enough amount of an oxidizer which include oxygen fuel or Yet another oxygen-loaded compound (though non-oxygen oxidizers exist, for example chlorine),[56] is subjected to a supply of heat or ambient temperature higher than the https://caswellgroup34566.blogitright.com/36765013/5-easy-facts-about-fire-resistant-ductworth-isntallers-described