flammable mixture limits
flammable vapor mixture
combustible mixture(inflam-mable mixture)
British Approvals Service for Electrical Equipment in Flammable Atmospheres
Electric apparatus used in flammable dust
flammable and combustible materials
Flammable and explosive
Flammable and explosive gas
flammable and explosive hazardous substance
flammable and explosive material
Flammable and explosive materials
Flammable cartridge case