Flexible PVC pipes; PVC rods; flexible plastic conduits for plumbing purposes; plastic hoses for plumbing use; semi-processed plastics in the form of sheets, films, blocks, rods and tubes; hydraulic hoses of plastic; flexible plastic pipes for conveying natural gas; flexible plastic plumbing pipes and tubes; plastic rods and bars; flexible gas seamed plumbing pipes of plastic; flexible water seamed plastic pipes of plastic; flexible tubes of plastic; flexible plastic pipes for plumbing purpos...