• Ductile Iron Manhole Covers C250 for Mining and construction with Frames of High Quality System 1
  • Ductile Iron Manhole Covers C250 for Mining and construction with Frames of High Quality System 2
  • Ductile Iron Manhole Covers C250 for Mining and construction with Frames of High Quality System 3
  • Ductile Iron Manhole Covers C250 for Mining and construction with Frames of High Quality System 4
  • Ductile Iron Manhole Covers C250 for Mining and construction with Frames of High Quality System 5
  • Ductile Iron Manhole Covers C250 for Mining and construction with Frames of High Quality System 6
Ductile Iron Manhole Covers C250 for Mining and construction with Frames of High Quality

Ductile Iron Manhole Covers C250 for Mining and construction with Frames of High Quality

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
100 set
Supply Capability:
4166 set/month

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Product Description


1.Advantages: Good compressive, bending and impact strenth,anti-corrosion, not rust,endurable service life.  
The quality meets the same kinds cast ion manhole covers but the cost is 30% lower than. Contain no metal and no recovery value, anti-theft.
2.Applications: water supply and drainage, fire engineering, natural gas,electricity and telecommunications, street lamp and outdoor illuminations.
3.Inspection: as per customer's request.

Ductile Iron Manhole Covers C250 for Mining and construction with Frames of High Quality

Ductile Iron Manhole Covers C250 for Mining and construction with Frames of High Quality




Specification


Item No.ClassClear Opening(mm)Frame Size(mm)
RGC-01LC250390*325530*465


Advantages


Advantages: Good compressive, bending and impact strenth,anti-corrosion, not rust, long service life  
(at least 30 years). The quality meets the same kinds cast ion manhole covers but the cost is 30% lower than. Contain no metal and no recovery value, anti-theft.                              


Packaging & Shipping



Packaging: Details Pallet with bubble film, Carton or with pallet,

 

Delivery Detail: within 30 days after your your ordering of our pruducts.


Ductile Iron Manhole Covers C250 for Mining and construction with Frames of High Quality


FAQ


Why imported Composite Manhole cover/Grating from China?


1. Very competitive price, it will save you third or even half cost;


2. China has full range of Manhole covers which Follow En124  for your market, like A15,B125,C250,D400.

 

3. We provide our best service for our customers.



Q: What are the casting parts used to test shrinkage holes?
2. x ray. This method can do nondestructive testing, but the cost is higher. Generally, high castings are required.
Q: Why does the precision casting factory not usually make iron castings?
Because it is too cheap, the design of materials is cast iron, generally do not have very high requirements.
Q: What are the requirements for casting steel castings?
4 thickness, most should be placed above the.5 and try to reduce the number of.6, the sand core should be used in classification of flat surface
Q: How do casting parts remove stress?
Annealing treatment, according to different casting annealing treatment, eliminate thermal stress, if need to restore hardness or increase hardness, and then quenching treatment
Q: What is the difference between forging parts and casting parts?
Forging is in hot state through the metal hammer or press equipment produced by forging parts. A casting is a metal that is liquid and is poured into a cavity of a specified shape and cooled and solidified. It is the forging metal soft pinch molding, and casting the metal into thin cooling solidification.Forged parts are costly and have long production cycles.
Q: Question, such as title, I hope I don't copy the definition of rolling and casting in Baidu encyclopedia, thank you
The performance is too extensive, I think the following several people all fall into the erroneous zone directly, the performance includes a series of aspects:Mechanical properties: tensile strength, yield strength, elongation and contraction ratio of section and impact toughness after etc.
Q: How can the casting be quenched and tempered?
Another is the result of pre heat treatment (quenching or annealing) after quenching and tempering treatment, suitable for ZG35SiMNMo, ZG35CrMo and so on. Please tell the casting process is your product and material and then set tempered.: shutup:
Q: How to distinguish the forging parts and casting parts accurately
To distinguish from the use of materialsForging materials are mainly made of carbon steel and alloy steel of various components, followed by aluminum, magnesium, titanium, copper and their alloys. The original state of the material is rod, ingot, metal powder and liquid metal. The materials needed for casting are mostly metal, wood, fuel, molding materials and so on. In contrast, the forging parts rarely produce dust, harmful gas and noise, etc., and play a more obvious role in environmental protection. Of course, because of this, the price of forged parts on the market is higher than that of castings.
Q: We are small castings, the need for surface treatment of shot blasting machine, about how much?
The choice of shot blasting machine, this is according to the workpiece size, yield, whether can collision, and the working time and other factors considered, while the price of different blasting machine are not the same, but the vast majority of small castings used crawler shot blasting machine,
Q: In the design of casting steps and precautions, for casting design, we have what experience?.
A: in the design of metal castings in a complex shape, if the production process is very difficult, should not affect the casting conditions, try to make the casting has simple shape, strong structure change, removed from metallic die for.

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