Ключевые слова: cast, circle, cock, concept, connection, connector, coupling, distribution, emergency, equipment, extinguisher, fighting, fire, fire alarm system, fire cock, fire hose, firefighting, fireplug, fittings, gear, hose, hydrant, hydrant valve, indoor, inlet, interface, interfaces, metal, modern system, object, oblique, pressure, protective, ready, red, rescue, safety, security, service, socket, stacked hose, stopcock, symbol, system, tap, tool, tube, valve, valves, water, water tap,