[Class : 17] Seals; Reinforcing Materials, Not Of Metal, For Pipes; Pipe Jackets, Not Of Metal; Pipe Muffs, Not Of Metal; Junctions, Not Of Metal, For Pipes; Plastic Pipes For Use In Manufacturing; Plastic Boards For Use In Manufacturing; Plastic Poles For Use In Manufacturing; Plastic Strips For Use In Manufacturing; Watering Hoses.[Class : 19] Drain Traps [Valves], Not Of Metal Or Plastic; Doors And Windows Of Plastic; Plastic Pipes For Building; Plastic Boards For Construction; Plastic Poles For Construction; Plastic Strips For Construction; Pipework, Not Of Metal; Laths, Not Of Metal; Water Pipes, Not Of Metal; Building Materials, Not Of Metal.[Class : 20] Valves, Not Of Metal, Other Than Parts Of Machines; Drain Traps (Valves) Of Plastic; Drain Valves Of Plastic; Water Pipe Valves Of Plastic; Nonmetallic Ball Valves; Plastic Trough For Cables And Wires; Sealing Caps, Not Of Metal; Screws, Not Of Metal.