Non-metallic construction materials, namely, pads, pads adjustable supports, fixed terrace pads, holders for joist for flat slabs, wedges for terraces, and joists patio wooden rafters; landscape borders of plastics; non-metallic lawn edging; non-metallic honeycomb panels for making roads, driveways, playgrounds, lawns, and for the construction of embankment; components of non-metallic stairway; non-metallic paving slabs; non-metallic slabs for construction