On/off valve apparatus for use in conjunction with electromagnet

One-body horizontal continuous casting apparatus and methods...

One-piece tundish lining

Open-hearth furnace

Orbital fabrication of aluminum foam and apparatus therefore

Outlet device for a melting crucible

Oxy-fuel combustion system and uses therefor

Oxy-fueled waste incinerator and method

Oxygen blowing lance capable of being used in an electric furnac

Oxygen injection lance

Oxygen lance assembly

Oxygen lance assembly

Oxygen lance assembly

Oxygen lance assembly

Oxygen lance assembly

Oxygen lance for steel converter

Oxygen lance head for treating molten masses

Oxygen-lime distributor for steelmaking vessel

Oxygen/carbon blowing lance assembly