Manhole Cover EV124/480 Made in China with Good Quality

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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 EV124/480 Made in China with Good Quality

Manhole Cover EV124/480 Made in China with Good Quality

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:Is zinc a transition metal?
Metals: Strong Malleable Ductile Good conductors Form positive ions Highly dense (Examples: Lead, copper, aluminum) Non-metals: Brittle Dull Poor conductors Form negative ions Low density (Examples: Helium, sulfur, bromine) Metalloids: Have properties of metals and non-metals (Examples: Silicon or Gallium)
Q:A metal oxide contains 91.4% metal by mass. Determine the identiy of the metal?
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Q:i need soem good metal bands now?
This is almost a good question. Metals don't carry more electrons than protons, but they do hold on to thier electrons more loosely than non-metals. That is why electricity will flow through a metal. When electrons enter one side of a metal wire, they can easily push the other electrons out of the way because the electrons in the wire are loosely held by their atoms.Electrons that get pushed push other electron that eventually come off the other side of the wire. At no time is there much of a build up of electrons on the wire because as electrons are added others fall off the other side. Why are the electrons more loosely held on metal atoms? there are good answers to this question but i am not sure how much background knowlege you have. Very basically there are several factors that contribute to how tightly an electron is held by an atom. 1) How big (positively charged) the nucleus is. Elements to the right side of the periodic table are more weakly positively charged. 2) How far away from the nucleus the outermost electrons are. Elements that are towards the bottom of the periodic table have the most electrons and have to hold some of them far away from the nucleus. 3) How well the magnetic fields of the outermost electrons are balanced. Elements that have few outer electrons are relatively unbalanced. The most metally metal (the one that holds its electrons the loosest) is Francium. But this is not the most electrically conductive for reasons I won't go into. The most conductive is good old silver, followed by copper and then gold.
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Rock: Post-Rock Metal: Death
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corrosive metals: aluminum iron tin non corrosive metals platinum nitinol (nickel titanium alloy) gold yes acid is corrosive
Q:Any Good Metal Artists?
Address: 7825 Olive Ave Lubbock, TX 79404 Phone: (806) 744-7091 Call 'em and ask yourself....not the entire English speaking world!
Q:whats the difference between metal and hard rock?
i remember my teacher saying in class that copper is diffrent from most metals cuz it can be wanting to gain or lose electrons.... something cuz metal and metal is covalent bonding ...and metal nonmetal is ionic bonding.
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Salts are never metals. It is a compound. The ammonium ion is acidic, and the sulphate ion is weakly basic. Overall, ammonium sulphate is acidic, because ammonium is more acidic than sulphate is basic.
Q:What are black metal subgenres ?
Metals always bond ionically because covalent bonding is between two non-metals only - you are correct in both statements. Just remember: metal + non-metal = ionic bonds eg. sodium + chlorine = sodium chloride non-metal + non-metal = covalent bonds eg. hydrogen + fluorine = hydrogen fluoride hope this helps you out =D

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