Prefabricated buildings, not of metal; Non-metal masts being structures, namely, non-metal utility poles; Non-metal props, namely, non-metal construction elements in the nature of supports; Fences, not of metal; Non-metallic reinforcements for concrete and wood building construction, namely, building plates; Non-metal balustrades; Joists, not of metal; Non-metal building materials, namely, plastic pedestals for elevating pavers; Non-metal building laths