• Ductile Iron Manhole Covers With EN124 Standard Made by Professional Manufacturers in China System 1
  • Ductile Iron Manhole Covers With EN124 Standard Made by Professional Manufacturers in China System 2
  • Ductile Iron Manhole Covers With EN124 Standard Made by Professional Manufacturers in China System 3
  • Ductile Iron Manhole Covers With EN124 Standard Made by Professional Manufacturers in China System 4
  • Ductile Iron Manhole Covers With EN124 Standard Made by Professional Manufacturers in China System 5
Ductile Iron Manhole Covers With EN124 Standard Made by Professional Manufacturers in China

Ductile Iron Manhole Covers With EN124 Standard Made by Professional Manufacturers in China

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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. Sample is available for free.

2. OEM and ODM are welcome.

3. Free charge of design labels and cartons.

4. Our products: produced by the hydraulic Press.Meanwhile, a number of experienced workers do the strictly Quality control and have production tracking program. 

5. Our price: we are the factory, we provide the most competitive price with good quality, and large order quantity will get big support by us!
6. Professional technical support with free charge.

7.Packing 
Steel or wood pallet, or as per customers' requirements'

Ductile Iron Manhole Covers With EN124 Standard Made by Professional Manufacturers in China

Ductile Iron Manhole Covers With EN124 Standard Made by Professional Manufacturers in China




Specification


Item No.ClassClear Opening(mm)Frame Size(mm)
D90D400800*800907*907
D70D400600*600703*703


Advantages


Good compressive, water-proof, hot sale around the world,anti-corrosion, serviceable life (at least 30 years).


Packaging & Shipping


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

Delivery Detail: 8 days if your order is 20"container


Ductile Iron Manhole Covers With EN124 Standard Made by Professional Manufacturers in China

Ductile Iron Manhole Covers With EN124 Standard Made by Professional Manufacturers in China





FAQ


1. How about your price?

    A: As one of famous manufacturers of Ductile iron products in China, Our prices are very favorable and competitive. The customers from all-over the world.

2. What is your minimum order requirement?
    We will indicate the MOQ for each item in the quotation sheet. we accept the sample and trial order. If the quantity of single item can't reach the MOQ, the price should be sample price.

3.Are you factory ?
   YES!  We are a professional ductile iron &gery iron casting  Factory in China.
4.How long can you make your quotation:
   Within 3 workdays after received your detailed product information 

5.How about your service?

   We provide packaging service and after sale service as well.

Q: What are the casting parts used to test shrinkage holes?
1. anatomy. It is easy to slack off by sawing and machining.
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: For example, casting parts contain many holes, inclusions and other defects, the size and the number of holes exceed which limit is not qualified
For example, the castings shall be in accordance with the requirements of the second types of castings in the technical requirements for aluminum alloy castings of GB/T9438-1999;
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: What are the causes of pitting on the surface of a precision casting?
The quality of the shell surface is out of order. Or shot blasting out of question.
Q: Where is the precision casting factory?
The National Precision Casting Factory is generally distributed in Shandong, Ji'nan, Jiangsu, Wuxi, Changzhou, Zhejiang, Guangdong, Panyu, Dongguan.The above are only the main distribution, many of Shandong are made supercharger, and Guangdong to jewelry industry based.
Q: What do you mean by "proofing" in the casting? Do you charge for the proofing?
Proofing refers to making the first sample to confirm to the customer
Q: Can the casting part be phosphating with the phosphating solution of the pickling board?
If it is Phosphating for painting, it is not necessary, because the surface of the casting is rough and can be firmly bonded with the paint film.
Q: What reason is the bronze statue choking fire?
The casting process in boiling phenomenon, is the setting of the exhaust hole positioner position or number is not reasonable, the air cavity can not be discharged, overwhelmed by a material inlet, reflux, change mould, sincerely help you look forward to adopt,
Q: Is 316 casting better than 304 casting?
The degree of difficulty in the process of casting depends mainly on the structure, precision requirements, and hardness of the casting.

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