Ключевые слова: 3d, art, background, barrel, blue, business, button, can, chemical, circle, container, contour, design, diesel, drop, drum, energy, flat, fossil, fuel, gallon, gas, gasoline, green, icon, illustration, industry, isolated, isometric, line, linear, lineart, market, metal, number, oil, outline, petrol, petroleum, pollution, power, purple, sign, symbol, tank, white,