Model Number: DL-MC-02 Key Specifications/Special Features: Manhole coverMaterial: ductile iron GGG500-7Dimensions (mm): overbase 850*850, clear opening 600, height 100Surface treatment: black bituminous paint or epoxy paintPacking: wooden palletFeature: embedded lockAdvantages:

Anti-theft: cover and base frame integrate connection, hinge-type opening, sledgehammer hit not break it, completely anti-theft

Load-bearing great: the toughness of ductile iron is fourfold that of ordinary cast iron, close to steel materials, suitable for all kinds of road use

Corrosion resistant: sewer internal environment complex, filled with various chemical substances, ductile iron does not suffer chemical corrosion, service life more than 30 years

Opens conveniently: light weight, single unarmed can be open, convenient downhole maintenance

Superior safety performance: it often occurred underground explosion accident, fly up covers scarred passers-by, manhole covers integration connections will not depart from the ground