Manhole Cover Ductile Cast Iron Made in China on Hot Sale of Heavy

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1,Cast Iron Manhole Cover Description :

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.

Manhole covers are often made out of cast iron, concrete or a combination of the two. This makes them inexpensive, strong, and heavy, usually weighing more than 50 kilograms (110 lb). The weight helps to keep them in place when traffic passes over them, and makes it difficult for unauthorised people not having suitable tools to remove them.

A manhole cover sits on metal base, with a smaller inset rim which fits the cover. The base and cover are sometimes called "castings", because they are usually made by a casting process, typically sand-casting techniques.


2,Main Features of the Ductile Iron Manhole Cover:

·High endurance

·High Strength

·Pressure Resistence



·Good visual effect


3,Manhole Cover Images:


Manhole Cover Ductile Cast Iron Made in China on Hot Sale of Heavy

Manhole Cover Ductile Cast Iron Made in China on Hot Sale of HeavyManhole Cover Ductile Cast Iron Made in China on Hot Sale of Heavy


 4,Manhole Cover Specifications:

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


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. I’ve measured my clear opening size but none of your covers match it, can you offer anything?

A. It’s likely that your cover is quite old and in imperial measurements which are no longer manufactured. However, we can offer bespoke solutions with manhole covers made to the specification you require.


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:Your favorite Metal songs and bands?
Typical categories for metals are ferrous and non-ferrous. Ferrous metals have iron in them: galvanised steel, mild steel, tin plated mild steel Non-ferrous metals don't have iron in them: coper, aluminum, brass, lead Thermosetting plastic and butyl rubber are not metals, they are polymers.
Q:Has metal influenced other genres?
some classic is good e.i: rolling stones, queen, alice cooper- the pioneers of rock basically alternative is my personal favorite metal is a tad obnoxious for my taste
Q:What are ferrous metals?
yeah if you put a fork or spoon in there it explodes. =]
Q:different method to extract metals?
Angry Heavy Metal
Q:Black or Death metal?
a kid ive come to trust about matters such as these says that nu metal is any metal where the singer goes from screaming to singing or talking or anything not screaming
Q:Any good finish heavy metal/rock bands?
there are transition metals when the filling of electronic building fills an inner subshell. for example the first transition group goes from Sc (Z=21 ) to Zn (Z=30 ) and correspond to the fimmilg of the inner subshell 3d. As the chemical properties are due mainly to valence electrons which are in this period 2 electrons 4s, these compounds are all metals elements forming cations They behave as metals Their density and conductivity is high
Q:Metal Merchandise?
Sheet metal is metal that has been rolled to a specific thickness. Its usually plain steel, but it can be made in other materials. Welding material is probably what they use to weld metal together. Welding material (or welding rods) are made from a material that is suitable for welding the base metals together.
Q:who invented metal and when?
Q:Can a metal detector.....?
Avoid goth/symphonic.. Try to start out with first wave black metals, and thrash metals, it'll lead right to the good ****.. Start with Bathory, Venom, Hellhammer, Mercyful Fate, Sodom, Kreator, Destuction, Celtic Frost, Death, Grave, Burzum, Mayhem
Q:Why do Metals...?
I gotta say nu-metal, Bands like Linkin park, System, Flyleaf, breaking Benjamin. Honestly both are awesome, but nu-metal is created similarly to classical music (I know weird). Mostly in the sense that It's usually more carefully arranged. Bands Like L P take around 3 year to start and finish each song, mostly because of how many edges they need to smooth out. So it ends up being more harmonic and diverse. Both are awesome, I hate it but I gotta side with nu-metal.

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