[ Gum, raw or semi-worked; Insulating gloves; ] Insulating materials; [ Insulating refractory materials; Insulators for cables; Plastic in bars, blocks, pellets, rods, sheets and tubes in further manufacture for general industrial use; Rubber bars and rods; Rubber sheets; Rubber, raw or semi-worked; ] Stuffing of rubber or plastic; Synthetic rubber [ ; Waterproof packings for industrial use; Gum, raw or semi-worked; Semi-processed acrylic resins; Semi-processed synthetic resins; Semi-processe...