Establishments primarily engaged in manufacturing plaster, plasterboard, and other products composed wholly or chiefly of gypsum, except articles of plaster of paris and papier-mache.
- Acoustical plaster, gypsum
- Agricultural gypsum
- Board, gypsum
- Building board, gypsum
- Cement, Keene’s
- Gypsum products: e.g., block, board, plaster, lath, rock, tile
- Insulating plaster, gypsum
- Orthopedic plaster, gypsum
- Panels, plaster: gypsum
- Plaster and plasterboard, gypsum
- Plaster of paris
- Wallboard, gypsum