Square paving material pat

Quick answer：

Square paving material refers to the materials used for covering and decorating public squares. 'Pat' may be a typo or abbreviation. It could refer to 'pattern,' indicating that the square is paved with materials having a specific pattern or design. Paving materials for squares can include concrete, bricks, tiles, or natural stone, and they are chosen for their durability, aesthetic appeal, and suitability for pedestrian traffic.