HOT LINE:+86-15116381985

Home - Our Product

Product list

Please contact us

  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

Square Manhole Cover&Frame

Catalog NumberA-Cover SizeB-Clear OpeningC-Frame SizeD-Frame HeightE-Duty ClassF-Lockable
square carriageway manhole cover660*660600*600800*800100105yes
All dimensions in mm.

Main business: hydraulic access cover, power manhole cover cover, electric manhole cover cover, intelligent monitoring manhole cover cover, intelligent communication manhole cover cover, intelligent water manhole cover cover, intelligent password lock manhole cover cover, integrated pipe gallery manhole cover cover, etc. It is a strategic partner of famous enterprises such as Huawei, China-telecom, Unicom, Zhongshan Dahua, CSCEC, CCCC, China Railway, Xi'an electric power, and the only supplier of Hong Kong Zhuhai Macao Bridge.Our products are exported to 32 countries and regions, Italy, Spain, UK, Malaysia, Middle east, Singapore, South Korea, Japan, Australia,Africa, etc,175 cities around the world.

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

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 manhole cover.

More Details


Ductile manhole cover


Ductile iron GGG50/7, gray iron






Round, square, rectangle


200mm-1200mm or as per customers’   drawing


Bituminous black


DISA Line, Hand Modelling


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

B125 C250 D400 E600 F900


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


Footway, pedestrians, car parks,   aircraft pavements


Longevity corrosion resistance,   excellent anti-pressure

Due to the paste solidification characteristics of nodular cast iron, the defects such as shrinkage cavity and shrinkage porosity are often produced in the production of nodular cast iron. In order to predict these defects before casting production, numerical analogy of casting process has been carried out at home and abroad as early as the printing years. The numerical analogy of casting process is to use the numerical analogy technology to simulate the actual casting forming process in the virtual environment of computer, including the filling process of metal liquid, the cooling and solidification process, the stress forming process, the judgment of the influence degree of main elements in the forming process, the prediction of fabric, performance and possible defects, so as to provide the basis for optimizing the process and reducing waste products.

casting process web use.jpg

Any Customized Model is available from us

Any question, please feel free to contact us
Your Name:Your Email:
Your Message:

Hunan Castking Foundry Technology Co.,Ltd