Manhole Cover Ductile Cast Iron on Sale from China Heavy Telecom Sew

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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 on Sale from China Heavy Telecom Sew

Manhole Cover Ductile Cast Iron on Sale from China Heavy Telecom Sew

Manhole Cover Ductile Cast Iron on Sale from China Heavy Telecom Sew




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:different kinds of metal?
Check out Pagan's Mind right now.
Q:Metal, eh?
they're actually considered as hardcore, nu-metal and groove metal!!! i love them anyway!!
Q:Are metals crystalline?
Pretty sure metal is more head-banging. Take 80's ROCK for example. How many of those songs were head-banging like some Nickleback songs can be? Almost none. So metal is hardcore rock or rock is a soft metal
Q:Anyone know some good death metal?
how do i construct a circular metal room? is it possible to curve metal that much? of course, look at a car or the Bilbao Museum - you use sheet metal and fasten the sheets to a frame or mounting material like curved sheet rock or wood paneling. The problem might be that only thin wood - veneer or somewhat thicker - can be fitted to curves. Silicone adhesive is the material that will hold wood in general to metal in general. E6000 is a thinner self leveling hard setting silicone adhesive and GOOP from the same company comes in several forms.
Q:Death metal?
Metals Metalloids Nonmetals
Q:How do you define... "Metal"?
New: Hour 1 by Scorpions The Cross by Scorpions New Generation by Scorpions Old: Polar Nights by Scorpions Dynamite by Scorpions Sails of Charon by Scorpions ...all by Scorpions, one of the coolest bands on Earth besides Metallica and Deep Purple XD!
Q:hair metal or grunge?
I am an Indonesian muslim and I, along with the big majority of muslims here, say that Islam doesn't prohibit any kind of music. We have so many kinds of Islamic music, from the traditional ones (Arab influenced) to more modern pop-rock songs. Even women can sing Islamic songs too. People who say that Islam forbid any kind of music are taking things too far. We just have to be careful that the music doesn't make us do anything immoral Islamic music, btw, doesn't mean that it has the word Allah in every sentence. It can relate to anything, the lyrics can be from one's own language, not exclusively Arabic. So, the answer is Yes, Islam and metal music can go together Islam can go together with anything. Let's not cage Islam in small place. Islam is very open to new ideas, so that it can adapt to and lead in the future.
Q:What is the difference between hair/glam metal and regular metal?
It's too artificial, none of the musicians possess a great amount of talent nor are they very skilled; the guitar riffs are generic palm muted strum riffs. DJs and beatboxes also do not belong in metal, rapping ESPECIALLY should not be a factor of metal. Not to mention it is WAY overproduced at times. It's basically kid music, like some 10 year old will hear a Linkin Park song on Transformers and think it's hardcore when they don't realize they're listening to the lowest form of talent.
Q:Is there a difference between progressive metal and technical metal?
If metals carried more electrons than protons, metals would have an excess of negative charges and would be negatively charged. However, metals, under normal circumstances, are NEUTRAL (door knobs, coins etc. are electrically neutral), because the number of protons = number of electrons.
Q:What is the city most of metal music in the United States?
can you explain which value you mean?

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