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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
municipal manhole cover750*750700*700900*900100D400no
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 municipal manhole cover across the world. 

Our main market including 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.


Casting Size: 1-1500KG

·       Gray Iron: ASTM A48/ EN1561

o   Class 25/GJL150

o   Class 30/ GJL200

o   Class 35/ GJL250

o   Class 45/ GJL300

·       Ductile Iron: ASTM A536/ EN1563

o   Grade 60-40-18/GJS 400-18

o   Grade 65-45-12/GJS450-10

o   Grade 60-50-05/GJS500-7



Ductile   cast iron, grey cast iron, steel




Sand   casting, Shell core casting


Sewer, Electronic, Sanitary, telecommunications, sewage,   drainage, water, stormwater, fire protection & etc.

Casting Tolerance   Min.


Machining Tolerance   Min.


Surfa-ce Treatment

Painting,   Powder coating, spraying, galvanization, chrome plating

Unit weight



Sewer, Electronic, Sanitary, telecommunications, sewage,   drainage, water, stormwater, fire protection & etc.

Technical Support

Owning experienced designing team






Single Seal, Double Seal, Bolt Hinge, Removable Hinge, Lock   Device, Spring Bar, Auto-locking Device, Safety-Design, Solid, Vent Cover,   Lifting Key Hole, Rubber/PE Gasket, GRP Plate, Cut-Corner Design, single   seal, double seal, hinge type, ventilated, watertight, airtight, and   anti-theft & etc.

Our Advantage

1.    Solid Experience

  We have been designing and manufacturing products for European market since 2001, just send us your requirements, we will do all the works

2.       Premium Quality

  From raw material selection to design to casting process to quality control, we adhere to EN124 standard strictly which guarantee reliable quality.

3.       Deliver on time

 Yearly 40000 ton of product yield enable us always deliver quickly.

4.       Large variety of casting mould

   We accumulated thousands of different casting mould in last 25 years.

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