Plastic goods or plastic products, namely, containers made of plastic, especially industrial packaging containers, such as storage and transport containers made by blow moulding or injection moulding processes, plastic containers incorporating an outer metal tube frame and base pallet, pallet containers having an inner plastic container, tank containers, transport pallets, blow molded technical parts, namely, hollow bodies; accessory parts for packaging containers of plastic, at least predominantly made of plastic, namely, screw caps, screw lids, sealed caps, bung plugs, inner containers for pallet containers, and thin-walled plastic inserts for use as container linings, namely, fitted foil sacks or bags, relief valves for preventing overpressure in plastic containers, valves for preventing underpressure in plastic containers, removal fittings for the removal of liquid contents, lids, clamping rings plastic valves, other than for medical use or being parts of machines