Ключевые слова:
Flow rates|Hydraulic tests|Ball cocks|Marking|Valves|Torsion testing|Liquid flow|Design|Size|Water|Valve components|Testing conditions|Water supply (buildings)|Piston valves|Dimensions|Performance|Copper alloys|Leak tests|Water valves|Pressure testing|Valve bodies|Liquid valves|Designations|Mechanical testing