1, anti-theft alloy cast iron casting non-professionals can not be damaged, special anti-theft cover body, from a fundamental solution to the social problems of the cover lost.

2, noiseless covers have been machined to solve the noise generated by the wheel rolling.

3, do not jump cover Geometrical size design is reasonable, ensure that the vehicle after passing the product does not flip, shift.

4, a wide range of applications, products in -40 ℃ ~ 80 ℃ under normal conditions of use for more than 30 years.

5, design and reasonable installation, easy to open, easy underground pipeline facilities inspection, maintenance.

6, beautiful appearance Products cast a clear, non-slip performance, color pleasing