Control rod for washbasin drain valves has knob fitted on its upper end which has cylindrical lower section with central bore, one wall of which has sloping section which snap-fits over corresponding section on rod

摘要

The control rod (2) for washbasin drain valves has a knob (1) fitted on its upper end. This has a cylindrical lower section (12) with a central bore. One wall of this has a sloping section (11) which snap-fits over a corresponding section (20) on the top of the rod.