Manhole Cover with Good Quality Heavy Made in China EN124
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 pc
- Supply Capability:
- 10000 pc/month
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1,Cast Iron Manhole Cover Description :
A 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
·Anti-corrosion
·Anti-theft
·Good visual effect
3,Manhole Cover Images:
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
9)Inspection
A)Inspection by our factory
B)The third party inspection,SGS
5，FAQ:
We have organized several common questions for our clients，may 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.
- Q: i had a metal bb in my knee and i had to go though a metal dector and it didnt go off. when i got home i put a magnet to it and it stuck. what is attracted to a magnet but doesnt set a metal detector off??
- These aren't all metal/screamo bands, but if you're looking for more music you should check them out. The fall of Troy Oh, Sleeper The Human Abstract Circa Survive The Bled The Dillinger Escape Plan The Memorials Deftones Mastodon Animals as Leaders Damiera At the Drive-in/The Mars Volta Kidcrash Rolo Tomassi
- Q: Or are they more black metal?
- metals have free outer electrons that can move freely and conduct electricity. semi conducters will have this kind of property but they wont have the same structure. sometimes im not sure if this applies, but the electrons in a non metal can spread out over the molecule a bit like the electrons in a metal. this may allow them to conduct.
- Q: what will happpen if i heat it.. and can metal carbonates and metal hydroxides be mixed together ??
- I honestly listen to every style of metal. I mean, I definitely listen to some more than others but a few of my favorites are Deathcore, Folk Metal, Symphonic/Melodic Black Metal, and Doom Metal. Although I do pretty much listen to every genre on your list.
- Q: I'm looking for folk metal, power metal, and metalcore bands! thanks :)
- Group III to XI are all transition metal for me i would always look at the abbreviated electron configuration of the atom when you see D orbitals with electron then its a transition metal same goes for f orbitals the groups i mentioned are all transition metals hope this help
- Q: I have listened to all of Symphony X's albums and Dimmu Borgir's albums: Death Cult Armageddon and Enthrone Darkness. I also think Dream Theater is good even know they aren't really symphonic. I just got into symphonic metal and was wondering what some other good bands I should start with?
- Save money from looking for them
- Q: I hate metal music! It's nothing but hating people and demons! It is soooo not cool!
- The kind they sell at a hardware store for metal roofs.
- Q: I looking to get the whole Metal Gear collection. Besides the Original one for Nintendo which Metal Gear games will work on the PS3? Also I can't rember which one it is but which Metal Gear is it were Snake meets Otocon and Rex for the first time
- Extracting a metal from a metal oxide IS reduction. Why? When it's part of an oxide, the metal has a charge (a metal oxide is an ionic compound). For instance, in MgO, Mg has a +2 charge and O has a -2 charge. In Al2O3, Al has a +3 charge and O is again -2. When the metal is extracted, it has NO charge. So if you extract Mg from MgO, Mg goes from a +2 charge to a 0 charge by gaining electrons ... that's reduction. At the same time, oxygen goes from a -2 to a 0 (the element O2 is formed) by giving up 2 electrons ... that's oxidation. In removing Al from Al2O3, Al goes from a +3 charge to a 0 charge. Again, that's reduction. Oxygen is again oxidized.
- Q: I love Metal......the Heavier the better!!!!!!!!!!!!!!!!!!!!!!!!!!!
- Yes, Rust = oxidization, so the question should be what metals oxidize and that's most of them. But, to actually rust the metal has to contain iron, because iron oxidation is the process that creates rust and is unique to iron. That limits it to iron and its alloy (metal combined with other elements) steel. According to Wikipedia: Rust is a general term for a series of iron oxides, usually red oxides, formed by the reaction of iron and oxygen in the presence of water or air moisture. Several forms of rust are distinguishable visually and by spectroscopy, and form under different circumstances. Rust consists of hydrated iron(III) oxides Fe2O3·nH2O, iron(III) oxide-hydroxide (FeO(OH), Fe(OH)3. Rusting is the common term for corrosion of iron and its alloys, such as steel. Other metals undergo equivalent corrosion, but the resulting oxides are not commonly called rust. Given sufficient time, oxygen, and water, any iron mass eventually converts entirely to rust and disintegrates. The corrosion of aluminium is extremely slow because the resulting aluminium oxide forms a conformal coating, which protects the remaining aluminium. This process is known as passivation. Aluminum takes a long time to oxidize, copper takes on a green patina that stops it from further oxidization, other metals would eventually decay through oxidization, but only iron rusts. But even elements that we don't think of as metals oxidize like silicon.
- Q: the hockey pucks and the metal
- No, they aren't. Some metals are more reactive than some non-metals and some are less reactive. You can't say all the metals are more or less reactive than all the non-metals. The most reactive metal is Fr (francium) and the most reactive non-metal is F (fluorine). Elements become more reactive at the extremes of the periodic table. The elements in the lower-left corner are the most reactive metals and the elements in the upper-right corner (beside noble gases, they generally don't react at all) are the most reactive non-metals. There is a Pauling scale which measures the electronegativity of elements. In this scale, fluorine has a number of 4.0, oxygen 3.5 and francium -1.0. Hope that helps! Louise
- Q: I need 10 questions about non metals and also metalloids. c:
- Good suggestions: White Wizzard Skull Fist Cauldron Holy Grail The Sword 3 Inches Of Blood Grand Magus
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Manhole Cover with Good Quality Heavy Made in China EN124
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 pc
- Supply Capability:
- 10000 pc/month
OKorder Service Pledge
OKorder Financial Service
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