PTFE Made Corrugated Hoses are available in sizes of 1/2"NB to 4"NB. Polytetrafluoroethylene-PTFE Made Corrugated Hoses are manufactured by RM Applied Engineers which is an ISO 9001 certified company. The Company also manufactures all range of hoses and expansion joints. The Polytetrafluoroethylene-PTFE Made Corrugated Hoses has stainless steel made single and double wire braid. These Corrugated Hoses has swivel flanges on teflon lined stub ends as end fittings.