20 Plastic spools, tubes or springs and reel carriers for threads (not fitted); slide rails for textile tubes and springs (made of plastic); plastic conveyors rails; plastic border strips for conveyor rails; plastic reel carriers (empty); plastic tubes and springs and bobbin tubes and springs (not fitted); plastic thread carriers (empty); plastic tubes and springs and cylinder tubes and springs (not fitted); plastic clamping rings and plug-type rings, more specifically with a colour marking; plastic reel carrier adapters; plastic plugs and centering devices for being placed layerwise onto piled textile tubes or springs and onto transport pallets to ease piling and to secure the piled tubes or springs during transport and storage; plastic caps; plastic rings for industrial use; plastic transport pallets; plastic dyeing tubes or springs (not fitted), transport tubes or springs and bobbin tubes or springs of plastic (not fitted); unwinders for loaded reel carriers (made of plastic); intermediate layers for inserting between loaded thread carriers; plastic colour marking rings for reel carriers and thread carriers; wooden bobbins for threads, cords; loading pallets, not of metal; transport pallets, not of metal; furniture, mirrors, picture frames; goods as far as included in this class made of wood, cork, reed, cane, wicker, horn, bone, ivory, whalebone, shell, amber, mother-of-pearl, meerschaum and their substitutes, or of plastics