Drain traps being non-metal catch basins for attachment to sewer pipes to trap debris, not of metal or plastic; Valves being water-pipe valves, not of metal or plastic; Water-pipe valves, not of metal or plastic; Balustrades, not of metal; Plastic landscape edgings; Prefabricated buildings, not of metal; Palings, not of metal; Latticework, not of metal; Fences, not of metal; Cold frames, not of metal; Trellises, not of metal; Horticultural cold frames, not of metal; Greenhouse frames, not of ...