Bethlehem Steel Company. Bethlehem special structural shapes for bridges and buildings : special I-beams, rolled girder beams, and rolled H columns of open hearth steel.

Bethlehem Steel Company.

Bethlehem special structural shapes for bridges and buildings : special I-beams, rolled girder beams, and rolled H columns of open hearth steel.

Bethlehem, Pa. : The Company, 1907.

Steel, Structural -- Catalogs.

Girders -- Catalogs.

Columns, Iron and steel -- Catalogs.

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