Plastics in this class; plastic film other than for wrapping; plastic and synthetic sheets, film, webs and foil in this class; plastic film, web or sheet material for sealing, covering and coating; plastic film, web or sheet material for agricultural and horticultural applications; plastic film, web or sheet material for agricultural and horticultural purposes including protection, treatment and weatherproofing of agricultural fodder, silage, plants or seedlings; plastic film, web or sheet material for agricultural and horticultural purposes including for wrapping bales of plant matter including cut grass, forage, silage making material, hay, straw and like materials; plastic film, web or sheet material for agricultural and horticultural purposes including for use in making silage; plastic bags and sacks included in this class namely plastic bags or sacks for making silage; plastic mulch films and webs for agricultural applications including photo-selective mulch films; plastic film or web material for use as a ground cover material; plastic film or web material for use in plant or seedling housing structures including shade houses; adhesive films and tapes included in this class; patching film, web or tape materials including adhesive backed materials, used to patch holes in plastic film or web material used in agricultural or horticultural applications including silage making film; plastic and synthetic membranes and film, web or sheet material for lining of pipes, tanks and other structures for the protection of the structure against corrosion, chemicals or the environment; plastic and synthetic membranes and film, web or sheet material in the form of a tube; films for use in the manufacture of packaging; semi-processed plastics in the form of film; plastics in extruded form for use in manufacture