
1. Low noise: manhole cover and the frame fit well, it solve the problem of the vehicle by the noise.
2. Fall prevention: manhole cover have inner cap.
3. Prevent slippery: covering non-slip texture clear, increase the friction, prevent because of the rain, snow, ice covered pedestrian slip.
4. Well sealed: it can be used hermetically, and effectively prevent those poisonous gases leaking out from cesspool.
5. No any jangle: There is neither jangle nor rebound when cars pass through.
The appearance of resin manhole cover has brought great changes and influences to urban life. It not only has the basic functions of other well covers, but also has many new and practical new functions. Resin well cover can stand on its feet in today's society, which shows that it is recognized by the public at present. Because it is recognized, it may have greater surprises and performance.