79021042
Apr 1, 2004
Jan 23, 2007
Equipment for hot blast furnace and steelworks installations, namely metal wall reinforcements for hot blast furnace, and air heater installations, namely shut-off and regulation devices, namely gas valves for hot blast furnace, and hot blast stove installations, namely shut-off and pressure regulation valves, gas valves for air-gas heaters and hot blast furnaces, sliding orifices, namely goggle valves, steel slide valves for steel smelting furnaces, goose necks, namely tuyere stocks for hot blast furnace
Environmental Control Apparatus