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  1. Email :
  2. Tel : +86-15116381985
  3. Add : Headquater Address : No.12, Dongshi Road, Changsha Economic Development Zone, Changsha, Hunan Province, China
  4. Foundry Address : Foundry Address: NO.260,Jinchang Road,Jinjing Town,Changsha,Hunan Province,China

Round Manhole Cover&Frame

Catalog NumberA-Cover SizeB-Clear OpeningC-Frame SizeD-Frame HeightE-Duty ClassF-Lockable
sewer cast iron manhole cover650-850600-800800-100060-100B125-D400yes
All dimensions in mm.

Founded 1993, Cast-King Foundry was a industry leader in exporting sewer cast iron manhole cover to every continent of the eart, Just purchase directly at good price from manufacturing factory as reliable supplier, save the money usually earned by a trading company

Our main market includ Italy, Spain, UK, Malaysia, Middle east, Singapore, South Korea, Japan, Australia,Africa, etc.

OEM & OED is available, look forward to having you as your agent in your local market.

We would push you to great success in municipal construction and infrascture project.

Look forward to being partner with those who are engaged in whole sale business for building material, any customized high quality mechanical and industrial casting are prvovided by us as well.



Ductile   manhole cover


Ductile iron   GGG50/7, gray iron






Round, square,   rectangle


200mm-1000mm   or as per customers’ drawing


Bituminous   black




Drawing-mould   making-raw casting-sand blasting-rough machining-surface treatment-product   inspection

Advanced   technology and equipments

Tensile strength: 500Mpa Yield stress: 320Mpa
  Elongation rate: 7%
  Hardness: HBS170-230

Load capacity

B1125 C250 D400   E600 F900


Machining:+/-0.02mm,   finish machining:0.002mm


Footway,   pedestrians, car parks, aircraft pavements


Longevity   corrosion resistance, excellent anti-pressure

 Typical Applications:

1. Heavy duty covers for motor vehicle Road, municipal pipelines, communications, power and water works.

2. P-type wells for steam 10 the following motor vehicle Road, municipal administration, living quarters communications, electricity and water supply works.

3. Light covers applied to sidewalks, parks, squares, green belt, municipal pipelines and other projects.

 Advantages of ductile iron manhole cover:

1. Low-cost

2. High strength,

3. Toughness,

4. Lighter weight

casting process web use.jpg

Any Customized Model is available from us

Any question, please feel free to contact us
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Hunan Castking Foundry Technology Co.,Ltd