treated corrugated sheets primarily for use in making boxes

extruded rigid plastic for industrial use and packaging, corrugated documents and document backing made of extruded rigid plastic

EXTRUDED RIGID PLASTIC FOR USE AS BUILDING MATERIALS - NAMELY, GLAZING FOR GREENHOUSES, UTILITY PANELS FOR WALLS AND FENCES, WATERPROOF MEMBRANES FOR USE IN CONCRETE AND ROOFING CONSTRUCTION, NON-STICK LININGS FOR CONCRETE FORMS, WATERPROOF MEMBRANES TO CONTROL HYDROSTATIC PRESSURE ON BELOW-GRADE CONCRETE STRUCTURES, RE-USABLE FOUL WEATHER ENCLOSURES FOR CONSTRUCTION WORK AREAS, AND VOID FORMING MATERIAL FOR USE IN CONCRETE POURING

EXTRUDED RIGID PLASTIC FOR INDUSTRIAL USE, AND PACKAGING, CORRUGATED DOCUMENTS AND DOCUMENT BACKINGS MADE OF EXTRUDED RIGID PLASTIC