Scaffolding made of non-metallic materials including those made of plastics; non-metallic building materials, namely, concrete, stones, cement, bricks, plaster, planks, plywood and non-metallic materials for scaffolds; non-metallic scaffolding pipes and pipe fittings; non-metallic transportable buildings and structures, namely temporary edge protection structures, namely, scaffolding made of non-metallic materials; non-metallic rigid pipes for building; asphalt, pitch and bitumen; non-metalli...