icon, symbol, illustration, vector, design, gear, sign, business, wheel, concept, technology, work, equipment, element, industry, engine, engineering, circle, cogwheel, industrial, motion, mechanism, web, mechanical, background, progress, machine, cog, technical, cooperation, machinery, power, black, teamwork, transmission, clock, round, mechanics, factory, communication, graphic, connection, set, isolated, shape, gears, modern, metal, construction, team