Ключевые слова: abstract, automation, backdrop, background, business, circle, cogwheel, company, curve, decorative, design, dirty, drawing, element, engineering, frame, future, gear, graphic, gray, grunge, grungy, hitech, illustration, industrial, line, machine, machinery, maroon, mechanical, mechanism, modern, motion, pattern, red, sketch, smooth, style, stylish, symbol, technical, technology, template, tool, vinous, web, wheel,