Sewer cover: The drainage grate is easy to use, easy to clean and maintain, easy to install, and easy to replace; it is a replaceable sewer cover. Drainage accessory: Its lifespan is relatively long, which can effectively reduce maintenance costs; it is a trench drain cover. Sewer supply: The drainage grate can play a role in reducing noise pollution by dissipating noise caused by traffic and inappropriate urban construction; it is a drainage channel. Restaurant trench: The drainage grate has good insulation and heat dissipation properties, ensuring that the trench temperature remains within an appropriate range; it is a trench accessory. Drainage cover: The drainage grate is also durable and has a long lifespan, reducing the need for frequent replacements and the cost of maintenance and trench supply.