1476 Rock salt
1771 Concrete work
3241 Cement, hydraulic
3251 Brick and structural clay tile
3269 Pottery products, n.e.c.
3271 Concrete block and brick
3281 Cut stone and stone products
4212 Local trucking, without storage
5031 Lumber, plywood and millwork
5032 Brick, stone, & related materials
5211 Lumber and other building materials
5261 Retail nurseries and garden stores
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