Plastic sheeting for agricultural purposes; plastic sheet materials for use in manufacture; semi-processed plastic in sheet form; plastic films for agricultural purposes; plastic film, other than for wrapping; non-conducting materials for retaining heat; substances for insulating buildings against moisture; padding materials of rubber or plastics; bags [envelopes, pouches] of rubber, for packaging; waterproof packings; packing [cushioning, stuffing] materials of rubber or plastics.