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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

Rectangle Manhole Cover&Frame

Catalog NumberA-Cover SizeB-Clear OpeningC-Frame DiameterD-Frame HeightE-Duty ClassF-Lockable
electric ductile iron manhole cover wholesale300-1300300-1200400-140060-100B125-E600yes
All dimensions in mm.

For almost 30 decades,  Cast-King has been dedicating itself to fulfilling what our clients need…quality castings, efficient communication and willingness to build long term partnership. This attitude has been the key in building decade’s old relationships as well as developing new relationships that would last for many years. While longevity may represent complacency for the cooperation, at Cast-King it translates into casting innovation with vast in-house experience from a financially stable company that places its customers’ needs first.

Since 1993, Cast-King Foundry has been a consistent leader in exporting electric ductile iron manhole cover across the world. 

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

OEM & OED is welcomed, look forward to being partner with for your local market.

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

As manufacturer foundry, we look forward to being partner with those who are engaged in whole sale business for building material.




Customer Required(300-1200mm)


Ductile Iron 500-7


construction , public road,drainage system etc

Model Number


Brand Name

CastKing or OEM

Place of Origin

China (Mainland)


black, grey, etc



Loading Pressure

A15, B125, C250, D400, E600, F900


black bitumen coated,epoxy painting




1 set


Moulding pressing


30~50 years

OEM service



pallet and wooden case, or as per customers' requirements.

1. High strength

Ductile iron manhole cover is up-graded cast iron manhole cover. It add ductile in cast iron to make the manhole strength much higher than iron manhole cover, not easy to broke by hammer.


2. Anti-theft

With less recycled materials compared with cast iron manhole cover, make ductile iron manhole cover more safer. And the cover is linked with the frame by hinge, not easy to be taken away.


3. Nice appearance

We use high quanlity ductile into our product, make it appearance more smooth than cast iron manhole cover and not easy to get rust. Its color is much closer to driveway, and not easy to sink, make our road more and more beautiful.


4. Anti-shock

A special device is in the manhole cover, so that the cover and frame can be connected much closer. It asmost avoid the noise when car pass by, and no more shocks come accross.


5. Competitive price

With all above advantage, the price is almost similar with cast iron manhole cover. So ductile iron manhole cover is become more and more popular in the morden life, and is highly valued by govenment.

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