You can distinguish them directly based on the shape on the board. A rhombus is a quadrilateral with four equal sides, and an oblate is an ellipse.
Pattern plate refers to a steel plate with raised or depressed patterns on its surface. The pattern of the pattern plate is in the shape of lentil, rhombus, round bean, oblate and mixed shapes. The lentil shape is the most common in the market. The places of origin are: Laiwu Iron and Steel, Rizhao, Benxi Iron and Steel, Shougang, Ningbo Iron and Steel, Meishan Iron and Steel, Anshan Iron and Steel, Taiyuan Iron and Steel, Beitai, etc.
The pattern on the tread plate mainly plays an anti-skid role. Most of the pavements on the pedestrian bridges on the road are tread plates, as well as the floors of some factories, and the floors of some buses in the past were also tread plates. Domestic pattern boards are generally stamped pattern boards, with the back recessed and the pattern protruding. The imported stainless steel pattern plate has a flat back and raised patterns.