• Ductile Iron Telecom Manhole Cover Sizes System 1
  • Ductile Iron Telecom Manhole Cover Sizes System 2
  • Ductile Iron Telecom Manhole Cover Sizes System 3
  • Ductile Iron Telecom Manhole Cover Sizes System 4
  • Ductile Iron Telecom Manhole Cover Sizes System 5
  • Ductile Iron Telecom Manhole Cover Sizes System 6
Ductile Iron Telecom Manhole Cover Sizes

Ductile Iron Telecom Manhole Cover Sizes

Ref Price:
get latest price
Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
100 set
Supply Capability:
4000 set/month

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Specification

Connection:
Extrusion molding
Color:
black, Grey, green, blue and Marble
Type:
Moulding Press
Size:
Customer's Request
Shape:
Square,round
Service:
OEM Service
Surface treatment:
Painting
Certification:
ISO9001 2008
Specification:
OEM
Standard:
EN124 Standard
Product Name:
OEM Products
Usage:
Construction
Material:
Iron
Brand Name:
CMAX
Process:
Casting. Deburring .Drilling .threading
Place of Origin:
Hebei, China (Mainland)

Product Description



1) Designs: based on EN124 standard and according to customer's drawing or

samples.

2) Applications: water supply and drainage, fire engineering, natural

3) Inspection: in-house or the third party as per customer's request.


Advantages



Good compressive, bending and impact strength, 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.


Ductile Iron Telecom Manhole Cover Sizes

Ductile Iron Telecom Manhole Cover Sizes

Ductile Iron Telecom Manhole Cover Sizes

Features



     1.High Intensity

It adopts macromolecule complex material and reinforcing steel bar moulded by high temperature and press at one time.

      2.Durable

Acid-alkali and corrosion resistance; anti-rust; insulation; weatherability; excellent anti-pressure capability.

     3.Unique  appearance

Rich colors;the cover is not sprayed in surface but painted in whole material so that the color can keep lasted.

     4.Competitive price

The price of compound manhole cover is lower than stipulated standard cast iron ones.

     5.Save mine resource

It is made by regenerated resin or regenerated plastic raw material, which save application of cast iron.


Specifications



Ductile Iron Telecom Manhole Cover Sizes


Company Information



CNBM International Corp., established in 2004, is the business entity for trade and logistic of CNBM Group.  

CNBM International is highly recognized by its business partners and clients all over the world and has established good business relationship with the customers in over 160 countries and regions all over the world.

CNBM Ductile Iron manhole cover A15-F900 complying with EN 124 Standard 


FAQ



1.Q: Are you factory ?
      YES!  We are a professional ductile iron &gery iron casting  Factory in China.
2.Q: How long can you make your quotation:
        Within 3 workdays after received your detailed product information
3.Q: Do you provide OEM Service?
       Yes, we provide OEM Service.
4.Q: What 's  your quotation element?
      Drawing, material, weight and quantity.

Q: What's the effect of casting copper?
In general cast iron, the mass fraction of copper below 3% - 3.5% can increase the hardness; but when the cast iron has a tendency to chill, or when there is a hard point of free carbides, the addition of copper decreases the hardness.Copper can be used to improve the wear resistance, abrasion resistance, and shock absorption of cast iron, so it is often used in the manufacture of sliding friction iron castings, such as drilling machine spindle, automobile and tractor, valve tappet, etc.. But in white cast iron or chilled cast iron, adding copper does not make any improvement in its abrasion resistance.Copper for certain heat resistant cast iron and austenitic cast iron can increase the heat resistance and corrosion resistance, copper - chromium composite alloy to prevent oxidation under high temperature in the atmosphere from the skin effect is particularly effective, heat resistance and corrosion resistance of austenitic cast iron containing many mass fraction of 4% ~ 7% copper.
Q: Explain the heat treatment effect of casting parts, forging parts and welding parts
Good welding of low carbon steel (alloy), probably because the weld workpiece rigidity, fast cooling, the weld internal crystallization of brittle microstructure (martensite), so after welding or welding process welding using self heat, reasonable arrangement of weld, welding seam and heat affected zone heat treatment. The welding heat treatment is often used to preheat before welding, after welding withasbestos cloth covering slow cooling annealing, reach the purpose, its main function is to reduce the internal stress, improve the weld microstructure of martensite formation, reduce brittle tendency, preventing welding cracks.
Q: The casting sand is going on
3, prevention measures(1) to improve the strength of sand mold (core), especially surface strength, high temperature strength, refractoriness, compact, better coating, good core coating and parting surface coating.(2) mould and box can prevent damage;(3) the core should have clearance.
Q: It is generally said that cast iron is re smelted by pig iron. My question is..:1 pig iron for melting iron, is directly cast into products (such as bed cover, etc.); or that is just the first pig iron smelting iron casting, such as to cover, bed and other products, will once again cast iron melt to casting?2, there are many castings to the engine. Are these castings made by the engine manufacturer themselves or bought by others?There is no need to answer all. Thank you!!!
The first to ask, such as casting end cover, bed and other products, is to put the iron melting and casting againThe two question, their casting castings manufacturers than to buy professional casting factory production, production quality more security professional.
Q: What method of casting does not rust? I think the sample is like oil
Close to the solder, and slowly dissolve is hot melt double-sided adhesive, otherwise it is oily double-sided adhesive.
Q: Casting parts have poor surface finish. What sand is used to make them?
V casting, EPC, precision casting of the surface is good.
Q: How to cast iron and wrought iron collocation
2, listen: Pig beating sound boring, wrought iron beating sound loud.
Q: Why do casting parts have air holes?
There are many reasons for casting porosity, mainly due to:1. smelting process is unreasonable, metal liquid absorbs more gas;2. the gas in the mold invades the metal liquid;3. from the mold is more water brush, core dry;4. the casting has poor ventilation;5. ladle tools are not dry.Wait。
Q: Younger brother is to do casting valve, precision casting parts, the valve internal sand serious, but the appearance is very standard, this is why, for God answers, thank you!
If is casting, internal shell mold may be not completely dry, strength is not enough, resulting in shell mold collapse into molten steel.It is also possible that the refractory is not refractory enough.
Q: Is 316 casting better than 304 casting?
It is comprehensive. There is no simple comparison of the material to determine the degree of difficulty in processing

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