BS En124 D400 Medium Duty Ductile Iron Double Seal Manhole Cover
D400 Double Seal Manhole Cover Specification:
D400 Manhole Cover features:
Cover and base frame integrate connection.
Ductile iron complying with Grades EN-GJS-500-7 or gray iron.
3. Free design
It can be designed according to the user's demands, including logo, surface pattern, and any other specification.
4. Corrosion resistant
Sewer internal environment complex ,filled with various chemical substances,ductile iron does not suffer chemical corrosion,service life more than 30 years.
Range of UV stable colours available that will not flake or crack. Minimum lifespan of 30 maintenance free years.
The toughness of ductile iron is fourfold that of ordinary cast iron,close to steel materials,suitable for all kinds of road use.
Light weight,single unarmed can be open,convenient maintenance.
Warmly welcome all the users and customers to patronize.if you need, feel free to contact us please.