Chenggui series cover plates are mainly used on Chengdu-Guizhou railway lines. They are designed with dot patterns and railway marks. Our company has developed 74.4 * 49.4 * 6cm, 44.4 * 49.4 * 6cm, 47 * 40 * 6cm and 42 * 40 * 6cm and other specifications, other specifications can also be customized.