Rubber tubes for use in manufacturing; [ flexible pipes not of metal * excluding flexible pipes made of plastic materials *; ] rubber hoses and tubes; [ rubber sheets and rubber panels, namely, rubber sheets and rubber mats; rubber products and synthetic rubber products, namely, parts for use in hydraulic systems in machines, namely, connectors, inserts, adapters, cases, mats, presses and valves; ] non-metallic hoses for transferring hydraulic power in machines * excluding pipes made of plast...