Artificial resins in the form of bars for use in manufacture; Chemical fibers, not for textile use; Couplings, not of metal, for fire hoses; Couplings, not of metal, for flexible pipes; Couplings, not of metal, for rigid pipes; Garden hoses; Non-metal fittings for flexible pipes; Non-metallic couplings for flexible pipes; Pipe couplings of rubber; Rubber couplings for pipes