Ключевые слова: apparatus, black, blue, clean, closeup, components, connection, control, cylinders, design, detail, efficiency, engineering, environment, equipment, filtration, flow, fluid, industrial, infrastructure, installation, liquid, machinery, maintenance, manufacturing, mechanism, modern, operation, pipes, plumbing, precision, process, purification, quality, resource, safety, structure, supply, system, technology, transparent, treatment, utility, valves, water,