non-metallic reinforcements used for strengthening and reinforcing non-metal structures; non-metallic bars and rods for strengthening and reinforcing non-metal structures; non-metallic reinforcements of organic plant material, textile, and polymer used for strengthening and reinforcing non-metal structures; non-metallic reinforcements of hemp, sisal, manila, jute, textile, and polymer used for strengthening and reinforcing concrete structures; non-metallic rope impregnated with a resin materi...