microbiological agar media for medical and food analysis

BUILDING MATERIALS FOR DECKS, PLAYGROUNDS, AND BOARDWALKS, NAMELY, NON-METAL PLANKS, COLUMNS, RAILS, POSTS, STAIRS, STAIR TREADS, BEAMS AND JOISTS; NON-METAL DOOR JAMS; NON-METAL WINDOW AND DOOR SILLS; VINYL AND WOOD SIDINGS; AND NON-METAL ROOFING PANELS