Concrete, Gypsum and Plaster Products Manufacturing

Establishments primarily engaged in manufacturing concrete building blocks and bricks from a combination of cement and aggregate. Sample business functions include architectural concrete blocks such as fluted, screen, split, and slump styles, concrete and cinder blocks, concrete bricks, paving blocks, and precast terrazzo plinth blocks.

Establishments primarily engaged in manufacturing concrete products (excluding blocks and bricks) from cement and aggregate. Sample business functions include concrete basement areaways, art marble, cast stone, concrete bathtubs, battery wells and boxes, concrete building materials (except block and brick), artificial concrete building stone, burial vaults (concrete and precast terrazzo), and catch basin covers.