Manhole Cover with Good Quality Made in China

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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  with Good Quality Made in China

Manhole Cover  with Good Quality Made in China


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:Coefficient of Static Friction for Metal/Metal, and for Leather/Metal??
well, steel is a type of metal. It's sort of like asking the difference between a bug and an ant, an ant is a bug, but not every bug is an ant. Likewise, steel is metal, but not all metal is steel. Gold is metal, Silver is metal, Iron is metal, Steel is metal.
Q:A metal oxide contains 91.4% metal by mass. Determine the identiy of the metal?
Metal is removed from the blues a bit, and rarely strays into the good-time-having real world stuff; It's about depression, death, genocide, hatred, evil, war, or fantasy about vikings, dragons, trolls.(it doesn't have to be brutal but it usually is not something relatable; power metal is very happy, but is about soaring into the valleys of the mighty dwarf or something weird).you won't find many metal songs with I love ya baby or woman or cranking my hotrod in the lyrics. the scales in metal guitar solos are, at least now, more exotic and classically oriented, rather than bluesy as in rock. I've also noticed that metal has a black or white, HEAVY-OR-SOFT use of distortion; there are no in-betweens you won't find slightly distorted rolling stones chords; you either find brutally distorted powerchords in STAND-ALONE riffs, or completely acoustic chording.
Q:Metal Gear Solid - Should I play the first two Metal Gear games first?
The primary reason for coating one metal with another is corrosion resistance. You might also do it for decoration, or to provide a wear or bearing surface, or to make a good electrical contact. Many things (tools, automotive parts, etc) are plated with copper and then nickel and then often chromium, to give them both corrosion resistance and a nice shiny chrome finish. The chromium gives an attractive bluish tint to the part, but it's the nickel that is the heavy layer giving you the mirror-like surface and most of the protection. Outdoor steel is often coated with zinc, called galvanization, either by electroplating or by dipping the steel into molten zinc. The zinc corrodes sacrificially to the steel it is protecting. Many things are gold plated for decorative purposes, to prevent oxidation, to improve electrical conductivity, or all of the above. You often see gold plated electrical connectors on high-end audio gear.
Q:Reactivity of Common Metals to Acid?
Yes it's metal, not very good metal but metal all the same
Q:metal band suggestions?
Frist wave bands Bathory , Darkthorne, Venom, immortal all are different Venom is more of a mix of thrash, black and death metal.. Bathory was the inventor of the Nordic black metal sound.. Darkthorne was also more extreme and influenced by death metal, Immortal like venom a mix or extreme black metal... Second wave is when you had more different influnces Emperor progressive/ symphonic, Mayham death and Suicidal.. But the most common ones are first wave Black Metal Blackened death Blackened thrash Melodic Black Symphonic Black metal Pagan Black metal or second wave of black metal Folk/Viking black metal Doom black metal Ambient/ Atmospheric black metal NSBM national socialist Black metal DSBM Depressive black metal Extreme black metal , Nattefrost and Marduk Raw is not a style it just coping of first wave black metal and unblack metal is not a sub genre is either black metal or its not... the problem is there is some sub genre's , the more mix it and progress it loses its luster and sound... I just call it all black metal as long as it sounds like black metal, if doesn't then I don't call it black metal...
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Stainless steel
Q:What is a divalent metal?
metal>shiny surface, malleable, good electricity conductor, good heat conductor eg: Cu, Zn, Pb, Fe, etc. etc. nonmetal> basically opposite of metal?xD
Q:wanna learn metal !!?
Speed, Thrash, Death, any kind of metal is better than rap...why do you think i stopped listening to the radio...if you want to hear some good music check out Strapping Young Lad its amazing!!!
Q:when is konami making metal gear solid 5?
Metal you hear alot more lead guitar, I high pitch voice. Rock is more Rhythm guitar, and a normal tone voice. Metal bands: Judias Preist, old metalica Rock bands: AC/DC , Aerosmith
Q:Tell me What is real metal?
Not a metal. Metals react with water

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