Building materials, not of metal, namely plastic; non-metallic construction materials, namely, pavers in the nature of plastic mats for paving; pavers in the nature of plastic stabilizer mats for paving; pavers in the nature of plastic permeable mats for paving; pavers in the nature of modular plastic mats for paving; non-metallic construction materials and components for stabilization, surfacing and reinforcement of ground road construction, namely, plastic conduits for drainage and irrigati...