Abstract: A collapsible seat having a human support position when in an assembled condition and a transportable condition. The collapsible seat includes a seating member and a base member that are both substantially identical wherein the seat member and the base member are removably interengaged by a telescopic pedestal. When in the assembled condition, the pedestal is in at least one extended position and a top end of the pedestal is rigidly connected to the seat member while the bottom end of the pedestal is rigidly connected to the base member. When in the transportable condition, the pedestal is in a retracted position and is separate from the seat member and the base member and can be stored between the seat member and the base member.

Abstract: A method for desulfurizing molten pig-iron involving injecting a gas-evolving desulfurization agent which includes a calcium compound and a gas forming material comprising of a gas-producing compound, a slag-forming agent and magnesium.

Abstract: A method for desulphurizing molten pig-iron involving injecting a gas-evolving desulphurizing agent which includes a calcium compound and a gas-forming material comprising of a liquid gas-producing compound absorbed in a porous slag-forming agent and at least 50% wt. magnesium.