All goods in this class including flexible conduits, ducting, pipes, hose and tube for use in ventilation and air conditioning installations, all the foregoing goods being made wholly or principally of non-metallic materials, such as canvas, textile or other fibrous material, rubber, plastic materials, being goods included in class 17

Hoses; hydraulic hoses; industrial hoses; rubber hoses; steel hoses; parts for hydraulic hose assemblies; fittings for hoses; hose couplings; and all goods in class 17