• Manhole Covers Ductile Iron Heavy Duty Round GGG50 DI System 1
  • Manhole Covers Ductile Iron Heavy Duty Round GGG50 DI System 2
Manhole Covers Ductile Iron Heavy Duty Round GGG50 DI

Manhole Covers Ductile Iron Heavy Duty Round GGG50 DI

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
100 pc
Supply Capability:
20000 pc/month

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Item specifice

Material:
Ductile Iron
Cross Sectional Shape:
Round
Thickness:
50-60mm

1.Ductile 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.
2.Main Features of the Ductile Iron Manhole Cover:
1. High load capacity & resilience
Hardness is same as cast iron, while FRP manhole covers have overwhelming advantages on resilience recovery. They are designed to exceed A15/B125/C250/D400 load capacity, according to EN124: 1994.
2. Designed structure & pressure dispersion
Arc-shaped bottom structure allows the pressure they bear disperse averagely on the whole surface. Besides, the products are made not by SMC, it was put in several layers of fiber cloth to enhance the structures. So they are stronger than SMC composite manhole covers.
3. Consequences of temporarily overloading
Temporarily overloading may cause smash of concrete covers, seriously deformation, even slightly split. But this will not happen to FRP fiber cloth manhole cover.
4. Safety options
There is no metal contain, directly reducing potential accident or further maintenance costs caused by thieves. Anti-slip surface offer a safe road condition even in extreme weather.
5. Light weight
Compared with cast iron manhole cover, FRP manhole cover is 30% lighter.
Light weight allows more loading per vehicle, more convenient transportation and economical savings.
Allows a safer working condition, which single workers is enough for installation without risk of injury.
3.Manhole Cover Images:

Manhole Covers Ductile Iron Heavy Duty Round GGG50 DI

Manhole Covers Ductile Iron Heavy Duty Round GGG50 DI

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
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’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:What does the home improvement hardware include? What are your buying skills?
A lot of home improvement hardware, including door pull pages, locks, slide rails, hinge handle, sliding door, rail suspension wheel, etc., these are considered home improvement hardware. Hardware purchase skills are as follows: (1) should be selected and sealed hinge, slide, lock of good performance. When buying and selling, opening and closing, pulling several times, feel its flexibility and convenience. (2) it is advisable to select locks with good flexibility. When you buy, you can plug the key several times to see if the thread is not smooth. The switch is screwed up, whether it saves power or not. (3) choose all kinds of decorative hardware with good appearance. When buying, mainly to see whether the appearance of defects, electroplating gloss, feel smooth and so on. (4) by hand a weigh weight, like products, the heavy weight of products relatively good materials.
Q:What does hardware refer to? What's the use?
Gold, silver, copper, iron, tin, traditional hardware, also known as "hardware"". Refers to iron, steel, aluminum and other metal, through forging, calendering, cutting and other physical processing made from a variety of metal devices. Such as hardware tools, hardware parts, daily hardware, construction hardware and security supplies. Most hardware products are not final consumer goods.
Q:What are the detailed classifications of hardware tools?
Hand tools, saws, wrenches, screwdrivers, pliersElectric and pneumatic tools; assembly; power tools; cutting; power tools; grinding; polishing; power tools; pneumatic toolsWeighing apparatus, measuring tool, lockset, cutter, weighing apparatus, measuring instrument, instrument, cutting tool, clampSecurity, daily hardware, security pipe fittings, door and window hardware, bathroom hardwareCraftsmen use tools, mechanics as tools, farm tools, civil tools, garden toolsSaw blade, saw blade, carbide saw blade, diamond saw blade, machine saw and saw equipmentAccessories, fittings, motor, reducer, air compressor, transmission partsMachinery, CNC, CNC electronic products manufacturing equipment, electrical appliances, machine tools and accessoriesMachinery equipment, packing equipment, printing equipment, separating equipment, welding and cutting equipmentEquipment, electric equipment, electric power, electrical equipment, wind
Q:How do you do the hardware business?
How to communicate with customers in the marketing, there are a lot of communication failures, where and why? In my dictionary, following the so-called communication failure Description: "don't be customer acceptance, or customers do not understand what is said, all invalid. The reason for this communication disorder is that the language situation is too weak, the voice, expression or reading skills are inadequate, the task of making sentences, or lack of interest in communication objects." It is important to build a bridge of trust or goodwill between customers at the first contact with the customer. At the same time, we should first point out the urgency of customer demand for this product, thereby causing customers to buy desire. Almost all salespeople agree that the most difficult part of all sales promotion is communication with customers. In fact, successful communication is difficult because of their different environments and different positions
Q:Want to know the function and choice of cabinet hardware parts
Cabinet hardware accessories are divided into functional and decorative hardware kitchen cabinets in two types, wet, smoky environment, selection of hardware fittings should be able to withstand the test, not easy to rust, corrosion, damage.
Q:Does hardware affect the tightness of doors and windows?
Let me put it briefly.The main window is divided into windows, windows and wood windows and other types of.It is made of glass, section bar, hardware, sealing strip and so on. The sealing of doors and windows is made up of all parts, including the quality of the glass, the quality of the profiles, the quality of the sealant (mainly), the quality of the hardware, the quality of the doors and windows.The tightness is mainly related to the sealing strip they use. For example, the common casement window adopts three yuan ethylene propylene sealant strip, while the sliding window adopts the sealed top.
Q:What kind of goods do you need to open a hardware store?
There are a lot of ah, tools, parts, screws, bearings, lighting, electrical materials, water cooler, there are some other configurations, such as titanium alloy frame. If you want to shop, you can go to shentop Hotel Web browsing, there are many types of him, should be for you.
Q:What hardware fittings are needed for the glass curtain wall project?
If it is a hidden frame curtain wall, so the glass will use glass block, glass block fixing method depending on the column and the beam form is generally M6 self tapping screws fixed and M6 stainless steel bolts, stainless steel bolt with a nut a bomb. If it is a plain frame curtain wall, there will be no such item.
Q:What does hardware and electrical appliances include?
Traditional hardware, also known as "hardware"". Refers to iron, steel, aluminum and other metal, after forging, rolling, cutting, and so on physical processing made from various metal devices. Such as hardware tools, hardware parts, daily hardware, construction hardware and security supplies. Most hardware products are not final consumer goods.
Q:what Hardware processing order required
Through friends, family and other relations to find outsourcing processing enterprises, that is, to take the job.The best thing is to find a famous company with high quality requirements, no matter how much it costs, first take it down, and then use it as a sign to get more and more orders.

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