The best flat submersible cables you can find in the market! Vinay Group is the manufacturer of international grade flat cables for the purpose of submersible pumps. The 3 core flat submersible cables that are produce are insulated with the best quality PVC to ensure ultra safety standards. The copper wires are twined tightly to make space for the best conduction. These entwined bunches are first coated with a sheath of colored PVC, which is then layered off with final PVC coating.