Flexible tubes not made of metal for use in the manufacturing industry excluding flexible tubes made of plastic materials, flexible tubes not made of metal excluding flexible tubes made of plastic materials, tubes and pipes made of rubber, rubber plates and rubber panels; products made of rubber and products of synthetic rubber specifically connectors, inserts, adapters, boxes, mats, presses and valves, all for use in hydraulic systems in machines; pipes not made of metal for transferring hydraulic power in machines excluding pipes made of plastic materials; pipes not made of metal for use in hydraulic systems in machines excluding pipes made of plastic materials