20 Clamps, not of metal; clips, not of metal, for hoses and pipes; pipe clamps, not of metal; clamps of plastics; hose clamps, not of metal; hose clips, not of metal; reels, not of metal, non-mechanical, for hoses; hand-operated hose reels, not of metal; plastic water tanks for household, industrial and agricultural purposes; plastic water storage tanks; water tanks of plastic for industrial purposes; portable water carriers made of plastic, namely, for use with hand operated apparatus for cleaning windows, glass or the outdoor surfaces of buildings; winding spools, not of metal, non-mechanical, for flexible hoses; water-pipe valves of plastic; valves, not of metal, for hoses and cleaning apparatus; clips, not of metal, for hoses, cables and pipes; collars, not of metal, for fastening hoses or pipes; tanks, not of metal nor of masonry, namely, plastic storage tanks; hand-operated non-metal garden hose reels; and parts and fittings for all the aforesaid goods