respiratory protective equipment / metal / explosive gas mixtures / fuel gas cylinder valves / fuel gas hoses / plastics / fire services / metal sheeting / gas cylinders / gas leaks / gas welding / molten metal / oxy/fuel gas equipment / oxy/fuel gas blowpipe / portable oxy/fuel gas equipment / hot metal / gas supply / store gas cylinders / oxygen systems / oxy/fuel gas torch / rubber / correct gas pressures / fuel gas / paint / oil / gas accumulating / fuel gas hose / fuel oil / maintained equipment / /