Wrapping and packaging materials; films, sheets or tubes of plastics; sacks, bags and containers made of plastics materials; carrier bags; cling films made wholly or principally of plastics materials; plastic bubble packs; all the aforementioned being for wrapping and packaging purposes; bags for microwave cooking; garbage bags, refuse sacks, dustbin liners; self-sealing plastic mail bags; resealable plastic bags; polythene bags; stretch film; silage bale stretch wrap