- Type: Clay Wet Sand
- Sand Core Type: Clay Sand Core
- Machining: Machining Center
- Surface Treatment: Galvanized
- Standard: BS
- Trademark: CZ
- Specification: 600x600
- HS Code: 73251090
- Casting Method: Thermal Gravity Casting
- Application: Architectural Engineering
- Material: Iron
- Surface Roughness: Ra0.4
- Certification: ISO 9001:2000, ISO 9001:2008
- Transport Package: Pallet
- Origin: Weifang China
Medium Duty Ductile Iron Manhole Covers EN124
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.
Changzhan Casting mainly manufacture all kinds of cast iron construction accessories: Manhole Covers, Gratings, Drainage Channels, Grooved Fittings. We also provide engineering parts and auto parts etc. We strictly control the quality from raw material to finished products according to the ISO9001-2008. At the same time, corresponding certificates are approved:
Manhole cover and gratings: EN124; ISO9001
Surface Box: BS 5834 Part 2:2011; ISO9001
Drainage channels: EN1433; ISO9001
Grooved coupling and fittings: UL/FM/CE; ISO9001