Ключевые слова: abstract, aluminum, background, blue, car, cartridge, circle, complex, construction, control, design, energy, engine, engineering, equipment, flow, fluid, gauge, hose, industrial, industry, isolated, letter, machine, machinery, mechanical, metal, metallic, oil, or, orings, part, pipe, plumbing, repair, ring, round, rubber, seal, shiny, sign, spare, steel, technology, tools, valve, water, white,