20 Containers made of plastic in the nature of plastic industrial packaging containers, namely, goods storage and transport containers made by blow moulding or injection moulding processes, canisters, hobbocks being goods storage and transport barrels, cans, barrels, lidded barrels and barrels with bung openings, containers incorporating an outer metal tube frame and base pallet, pallet containers, pallet containers having an inner plastic container, pallet containers incorporating fitted plastic inserts, and transport pallets, all of the aforementioned being made of plastic; plastic storage tanks not of metal or masonry for hazardous liquids, fuel oil, beverages, water, and chemicals; blow molded technical parts made of plastic, namely, hollow bodies being packaging, storage and transport containers of plastic for commercial or industrial use; liquid fuel containers of plastic; plastic packaging, storage and transport containers for commercial or industrial use and protective covers for the containers especially shaped therefor; accessory parts for all of the aforementioned containers, predominantly made of plastic, namely, lids, clamping rings, screw caps, screw lids, sealed caps, bung plugs, inner containers of plastic for pallet containers predominantly made of plastic, fitted plastic inserts for use as container linings, namely, fitted foil sacks or bags, relief valves for preventing overpressure in plastic containers, valves for preventing negative pressure in plastic containers, plastic valves, other than for medical use or being parts of machines, and removal fittings for the removal of liquid filling goods in the nature of taps and faucets for containers; non-metal taps for casks; non-metal covers and lids being plastic packaging container components; cylindrical plastic packaging, storage and transport containers sold with or without lids and covers for commercial use; plastic boxes; containers not of metal for commercial use, in particular wood or plastic crates, wood or plastic boxes, and non-metal bins; non-metal rings for securing covers on pressurized containers; cylindrical packaging containers of plastic; plastic containers for holding industrial and commercial liquids; cylindrical or slightly conical plastic packaging containers; plastic storage drums with removable cover and other than for household or kitchen use