Well lid (outside square - inside round - swallow)

Abstract

1. The name of the design product: manhole cover (outer square and inner circle-Yan). 2. The use of the design product: for the manhole cover of pedestrian walkway. 3. The design points of the design product: in the combination of shape and pattern. 4. The picture or photo that best indicates the design points: front view. 5. The part of the design product that is not easy to see or cannot be seen when in use is omitted, and the rear view is omitted.

Images