Manhole Cover Ductile Cast Iron Made in China Heavy Telecom Sew

Ref Price:
Loading Port:
Payment Terms:
Min Order Qty:
100 pc
Supply Capability:
10000 pc/month

OKorder Service Pledge

Quality Product

Order On-line Tracking

Timely Delivery

OKorder Service Pledge

Credit Rating

Credit Services

Credit Purchasing

Share to:

Product Description:

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 Heavy Telecom Sew


Manhole Cover Ductile Cast Iron Made in China Heavy Telecom Sew

Manhole Cover Ductile Cast Iron Made in 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. 



Send a message to us:

Remaining: 4000 characters

- Self introduction

- Required specifications

- Inquire about price/MOQ

Q:transparent metal?
People who say metallica, yes they were VERY influential, the core of modern metal. But if you take all of the major popular metal TODAY, nu-metal, metalcore, melodic metalcore, hxc etc, korn, lamb of god, august burns red, bullet for my valentine etc. two bands alone helped spur this new pop/crap genre of metal. IN FLAMES and PANTERA In Pantera's 1990 Cowboys From Hell, vinnie and dimebag introduced the forst hardcore breakdown, a slowed part of the song with crazy drums, chugging guitar and simplistic vocals, all played at half-time. This was Prime material for moshing to, and was copied by 1000's. In Pantera's Vulgar Display of Power, they taught many artists how to be heavy without being metal. Even Korn cited his as the bse for all of the heavier nu-metal. (coal chamber, anyone?) In Flames was an easy melodeath band to copy from, especially their riffs. Many melodic metalcore bands took In Flames style riffs, cut out the solos, and added a hardcore breakdown. The solos they do have are freaking weird, but that is less common anyway. The vocals are not like pantera nor in flames.
Q:information about second row transitiom metals?
Alternative metal: dont listen to any Avant-garde Metal: never hurd of it Black Metal: Dimmu borgir, Gorgoroth Death metal: Vader Doom Metal: not sure does cannible corpse count as doom metal? Folk metal: eluveitie, Korpiklaani Gothic metal: cradle of filth (i think thats goth lol) Grindcore: Torsofuck, waco jesus heavy metal: metallica, Black sabbath Industrial metal: Static x Metalcore: Suicide silence Neo classical metal: never hurd of it power metal: dragonforce progressive metal: Born of Osiris sludge metal: none stoner metal: none Symphonic metal: nightwish Trash: Devildriver Viking metal: Týr, Amon amarth for most of those i knw more bands but cba typing everything
Q:So what is heavy metal, speed metal, death metal, etc, referred to as in these days?
There are many genres of metal these days so try experimenting with a few like try anything from HIM to As I Lay Dying and shift to like Norma Jean or Unearth. There's also bands like Underoath or A Skylit Drive, finally you have the kings like Black Sabbath or System Of A Down (who are back wooooo) Just try a whole bunch and enjoy, welcome to the cool side =] jk
Q:What the Heck is NU-metal?
Metals form what is called a metallic bond, a delocalised mess of electrons around all the nuclei. This is what give metals their metallic properties. Non metals have positively charged nuclei, and as such will attract electrons and form covalent bonds. I'd go into more details but its been a while since chemistry.
Q:gr8 death metal bands?
Death metal. Aside from a few bands it all sounds generic to me.
Q:is symphonic black metal Real black metal?
Black ,more atmospheric.
Q:todays metal scene??????????
sophisticated thing. try searching with google or bing. this will help!
Q:Any Metal Gear Solid fans?
Q:Black or Death metal?
Q:metal band suggestions?
Here are all of the Black Metal Genres (and their crossover) I know of not mentioned in : Blackgaze: Crossing Atmospheric Black Metal with Shoegaze (where instruments blend with each other Bands: Deafheaven, Alcest Blackened Death Metal: Crossing Black Metal with Death Metal Bands:Belphagor, Behemoth Blackened Doom Metal: Crossing Black Metal with Doom Metal Bands: Woods of Ypres, early Katatonia Depressive Suicidial Black Metal (DSBM): Black Metal with a more introverted atmosphere Bands:Shining, Gris, Trist Melodic Black Metal: Black Metal with a heavier emphasis on a clean and polished sound Bands: Dissection, Windir, Borknager Pagan Black Metal: Black metal with some folk elements and more melodic guitars Bands: Ulver, Negură Bunget Progressive Black Metal: Crossing Black Metal with Progressive Rock/Progressive Metal Bands: Enslaved

1. Manufacturer Overview

Year Established
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates

a) Certification Name  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:
b)Factory Information  
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range