railway sleepers not of metal; railway materials, not of metal; plastic articles for use in civil engineering construction; plastic articles for use in construction; non-metallic building materials for construction of flood protection barriers; non-metallic materials for use in the construction of walls; non-metallic materials for use in making walking paths; non-metallic walkways; non-metallic materials for making roads; thermoplastic materials for making roads; plastic materials for constructional purposes; non-metallic building materials in the form of plastic extrusions

recycling of plastics; treatment (recycling) of chemicals; recycling of chemicals; extruding of plastics; forming or moulding of plastics