... ) number of cores: One, two, three, four, five, six 3) general rubber sheathed flexible cable A) common rubber sheathed flexible cable ... . Rubber wire (flexible copper rubber insulation wire) RUBBER SHEATH CABLE General Rubber Sheath Cable (GB5013-1997, JB)(GB5013-1997, JB8735-1998 ... . 4) ZR-model cable has the property of fire-resistance. General Rubber Flexible Cable