:basic-shapes-triangle-and-square-in-line-art:

:flat-line-drawing-of-piston-and-gear-in-stylized-manner:

:two-dimensional-render-of-a-gear-and-a-piston,-which-are-parts-of-an-automobile.-the-vector-should-use-think-lines.:

:flat-drawing-of-gear-and-piston: