The Hydro/Elastomer Formed Hoses are manufactured using Elastomer / Water Hydro forming technology whereby the user are able to obtain a high profile corrugation in both, single and multi-ply construction. Ranflex India Pvt. Ltd. Manufactures Hydro/Elastomer Formed Hoses. Ranflex India Pvt. Ltd. Is ISO/TS 9001 and 16949:2002 certified company that offers bellows, annular & spiral corrugated & assemblies, expansion joints, flexible metal tubing, etc. For automobile applications. In this process, one corrugation is formed at a time within intricate tooling and therefore, to very close tolerances.