Anti-setting cast iron manhole cover

Anti-setting cast iron manhole cover is also known as "five anti-cast iron manhole cover", anti-noise, anti-jump, anti-theft, anti-fall, anti-displacement.1, anti-sound: mainly to prevent cars, pedestrians or objects to avoid the impact of sound.2, anti-jump: a flexible spring is added between the manhole cover and the manhole cover, and the manhole cover is firmly fixed on the well ring, thus solving the problem of the manhole cover jumping.3, anti-theft: base manhole cover integrated two design, anti-theft and anti-loss.4, fall prevention: the well cover and the well ring are connected together with folding pages, which solves the problem of fall prevention well.5, anti-displacement: This manhole cover directly into the well hole, can solve the problem of manhole cover under the rolling of the vehicle.Our company can customize different words, patterns, sizes of dust-proof cast iron manhole cover. Moreover, our company has qualification certification, product quality assurance, you can rest assured to buy.