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The constant tightening of exhaust gas standards and emission regulations in recent years forced the automotive and commercial vehicle industry to shorten optimization cycles and to improve the efficiency of exhaust gas aftertreatment systems. As a result, the requirements on decoupling exhaust routings between the engine and the aftertreatment system are continuously growing. Westfalia Metal Hoses is a leading global supplier of such complex assemblies constisting of flexible metal hoses or gastight decoupling elements including bent pipes, thermal insulation and suitable connection technologies for trucks, buses, agricultural vehicles and construction machinery.