Manhole Covers Ductile Cast Iron Bitumen Coating

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China main port
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100 pc
Supply Capability:
3000 pc/month

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Product Description:

1,Cast Iron Manhole Cover Description :

A manhole cover is a removable plate forming the lid over the opening of a manhole, to prevent anyone or anything from falling in, and to keep out unauthorized persons and material.

2.Applications: water supply and drainage, fire engineering, natural gas, 

electricity and telecommunications, street lamp and outdoor illuminations.

3.Designs: based on EN124 standard and according to customer's drawing or samples.

4.Color: black, Grey, green, blue and Marble , etc.

5.Inspection: in-house or the third party as per customer's request.

2,Main Features of the Ductile Iron Manhole Cover:

Light weight

Compared with cast iron manhole cover, FRP manhole cover is 30% lighter.

Light weight allows more loading per vehicle, more convenient transportation and economical savings.

Allows a safer working condition, which single workers is enough for installation without risk of injury.

Long service life

Strong resistance of acid, alkali, weathering, anti corrosion of water, dust, manhole covers used for gas are well sealed which prevent poisonous gas leaking.

Temperature tolerance is at the range of -40°C-200°C.

Customer design

FRP manhole covers allow customers’ innovative design, logo, or etc. we have our own design team who can also offer design work for customers.

No color fading

The cover is not sprayed in surface but painted in whole material so that the color can keep no fading.


 1) Production information
Manhole cover are manufactured for construction and public use. Manhole cover shall be smooth and free sand holes, blow holes, distortion or any other defects 

2) Material
A) Ductile iron GGG50

B) Grey iron GG20
3) Designs
A) EN124 Class B125 C250 D400 F 900, with different size and grammage, or as  customers' requirement.
B) as per customers' drawing or samples
4) Process
A) Molding boards

B) Hand Casting 

5) Coating
A) black bitumen or epoxy .
B)Coating as per customer's requirement

6) Different accessories are available 

7) Packing:
Wooden case or wood pallet, or as per customers' requirement 

8)  Payment terms: T/T or L/C 


A)Inspection by our factory

B)The third party inspection,SGS

3,Manhole Cover Images:

 Manhole Covers Ductile Cast Iron Bitumen Coating

Manhole Covers Ductile Cast Iron Bitumen Coating

4,Manhole Cover Specifications:

1) Process
A) Molding boards

B) Hand Casting 

2) Coating
A) black bitumen or epoxy .
B)Coating as per customer's requirement

3) Different accessories are available 

4) Packing:
Wooden case or wood pallet, or as per customers' requirement 

5)  Payment terms: T/T or L/C 


A)Inspection by our factory

B)The third party inspection,SGS


We have organized several common questions for our clientsmay help you sincerely

Q. Can I fit a square manhole cover into a round chamber?

A. Yes, there are a select few manhole covers which are square-to-round, meaning they will fit square or round chambers. 


Q. I have a heavy traffic manhole cover but it has been broken by a forklift, why?

A. Forklifts have solid wheels which apply pressure differently to standard pneumatics and therefore covers must be specially adapted to suit this.


Q. The project I’m working on requires a manhole cover with a quality finish, what’s available?

A. Naturally, galvanised steel of black polypropylene aren’t always ideal, and so we offer brass or stainless steel edging, as well as complete stainless steel covers.


Q. Odours are coming through where I have installed my manhole cover, why?

A. Your cover must be sealed and locked, or neoprene sealed, so you would require a T-Range Cover, or if you require a solid top, a selection of the PC range (e.g. PC2BG3, PC6CG3, not PC2BG) are suitable.


Q. I need access through my manhole cover on a regular basis, is this possible?

A. Yes, the majority of covers have built-in lifting keys, and for those that don’t we also supply lifting keys. However, the best way to obtain easy access is to have a bespoke, hinged manhole cover. 


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Q:How to maintain the hardware?
Hardware should be regularly wiped with dry cloth to ensure its luster, in case of discoloration
Q:What are the detailed classifications of hardware tools?
Hand tools, saws, wrenches, screwdrivers, pliersElectric and pneumatic tools; assembly; power tools; cutting; power tools; grinding; polishing; power tools; pneumatic toolsWeighing apparatus, measuring tool, lockset, cutter, weighing apparatus, measuring instrument, instrument, cutting tool, clampSecurity, daily hardware, security pipe fittings, door and window hardware, bathroom hardwareCraftsmen use tools, mechanics as tools, farm tools, civil tools, garden toolsSaw blade, saw blade, carbide saw blade, diamond saw blade, machine saw and saw equipmentAccessories, fittings, motor, reducer, air compressor, transmission partsMachinery, CNC, CNC electronic products manufacturing equipment, electrical appliances, machine tools and accessoriesMachinery equipment, packing equipment, printing equipment, separating equipment, welding and cutting equipmentEquipment, electric equipment, electric power, electrical equipment, wind
Q:How do housekeeping refer to hardware accessories with good or bad?
Imported hinge due to material requirements, the general weight of domestic hinge than 20% to 30%, the surface plating smooth and delicate. Besides, the edge of the hinge spring plate is processed smoothly and orderly, and the high quality hinge is additionally provided with nylon protector. The edge of many spring hinges made in China is not polished and has burrs.
Q:What is wooden door hardware?
Having specific functionsIt includes: wooden door lock, cabinet handle, bathroom pendant, clothes hanger and so on.
Q:I opened a small hardware factory, and I also have a few punch, want to do hardware accessories, and do not know what kind of good to do, good money, beg!
Small pieces, as long as the amount, you can certainly make money steadily
Q:What do you have for construction hardware? What do you need to open a hardware store? Is the construction hardware mainly aimed at the construction site? Do we need hardware for real estate?
Any of various metal and non-metallic fittings mounted on doors and windows of a building. The building door lock, handle, frame, hinge, door closers, handle, bolt, hook, chain, induction door device etc..
Q:Do their own cabinets, cabinets hardware where can I buy?
Cabinet hanging yards, preferably hidden style. Handle should be rich, general building materials city is not rich enough, hinge, better. Foot, the kind of adjustable, engineering plastics can. Materials such as fire boards
Q:How to inquire about the price of hardware products? How much is the gross profit of hardware products? Thank you
Gross profit does not know, but you can go to the hardware product supply, purchase price and so on to make some understanding, and then make a decision
Q:What are the hardware parts used in the decoration?
Decoration hardware used many, hardware accessories a wide range, wide range of applications,
Q:What are the laws and regulations of hardware?
There are two main parts.One is the national quality standard. This is the regulation. The hardware shall conform to the requirements of the regulations in accordance with the regulations.Another is the national security standards, this is the strict implementation of the legal norms.

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