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Flexible Hose, Rubber Hoses, PVC Hoses, PU Hoses & Tubing | Ralco Tubings Ltd. Ralco's range of flexible hose and tubing includes PVC Hose, Rubber Hose, Nylon Tubing, Polyurethane Hose and a complete range of Industrial Layflat and fire hoses for applicatins including air, water, food, steam, chemical, oil, welding and material handling.