• OEM Precise Ductile Cast Iron Manhole Covers From Manufacturers System 1
  • OEM Precise Ductile Cast Iron Manhole Covers From Manufacturers System 2
  • OEM Precise Ductile Cast Iron Manhole Covers From Manufacturers System 3
  • OEM Precise Ductile Cast Iron Manhole Covers From Manufacturers System 4
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OEM Precise Ductile Cast Iron Manhole Covers From Manufacturers

OEM Precise Ductile Cast Iron Manhole Covers From Manufacturers

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

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Specification

Process:
Casting. Deburring .Drilling .threading
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
Connection:
Extrusion molding
Place of Origin:
Hebei, China (Mainland)

Product Detail

1) Material 
a) Ductile Iron GGG500-7 & 400-12 
b) Grey Iron GG20

2) Designs.
a) EN124 A15, B125, C250, D400, E600 and F900 
b) A60005 for casting design 
c) Major standards designs available 
d) As per customers' drawings or samples 
3) Process 
a) Molding boards 
b) Green sand with hand molding 
4) Coating 
a) Cold applied black bitumen 
b) Without coating 
c) Coating as per customers' requirements


Packaging and Shipping

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

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


OEM Precise Ductile Cast Iron Manhole Covers From Manufacturers


OEM Precise Ductile Cast Iron Manhole Covers From Manufacturers



Our Services

1. Sample is available for free.

2. OEM and ODM are welcome.

3. Free charge of design labels and cartons.

4. Professional technical support with free charge.

5. After the cooperation: Any of your problem will be solved within 24 hours.


Specifications

OEM Precise Ductile Cast Iron Manhole Covers From Manufacturers



Our Company

We take pride to introduce ourselves as the leading manufacturer and professional supplier of various Ductile Iron Manhole covers in China with total annual capacity 50,000 MT.

CNBM manhole cover regard quality as the essential factor leading to successful business. After years of efforts, CNBM manhole cover have built up great reputation in terms of quality and service among domestic and overseas customers.


FAQ

About Sample

Q : Can I get free samples?

A: Yes, we can provide you the free sample, but you have to bear the delivery costs.

About Package

Q: Can I change your package Way?
A: Yes, we can make the form of the package and transportation according to your request, but if any additional charge occurs, you have to pay for it.

About Customer Logo


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: How is the silicon sol precision casting part priced? What is the price per ton of casting? Such as 304 material.
The material is usually steel material price plus the cost (per ton of 2.5-3 million, plus profit).In the Yangtze River Delta region, generally 304 casting price of about 5-5.5 million / ton.The price will be higher if the parts are complex, or a piece weighs less than 100 grams.
Q: The casting defects of pores, trachoma how to repair?
Airhole above 2mm recommended LT101 casting defect repair agent. If repair quality requirements, high availability LT111 iron repair agent, LT112 steel repair agent, LT113 aluminum repair agent, LT114 copper repair agent.
Q: What are the casting parts tested?
The surface brightness, appearance, size, chemical composition, weight, material, surface defects, internal defects, seals need to be checked, leakage, etc.
Q: the parts of the threaded hole is casting, casting the hole directly, and then tapping or casting, and then punch 10When the casting is ready, punch it again before tapping it Is the hole casting good or is it punched and tapped on the drilling machine after casting?
Single for this problem, the direct casting out of course good. But many times because of the limitations of the process, so we choose the post-processing hole
Q: The cause of fracture and why there is no toughness
This question is too broad, see what the casting casting Oh in order to reduce the wayward cast steel, ductile iron, gray iron and white iron, you can choose the material according to their own requirements.
Q: How do you mark it on the drawing? Do you need to discuss it with the manufacturer?Because the casting allowance is the standard, then, after all, is the theoretical value, the actual level depends on the manufacturer, so is it necessary to ask the manufacturer?
The general foundry casting technology division will mark put shrinkage and the allowance of the map in your chart (usually with the red pen) for the production of wood or other material wood workers die drawings.
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: Why should pig iron be used in casting?
Popular name is called pig iron, in fact, is a kind of cast iron without treatment, after casting, in iron elements to add other elements to improve casting performanceIt mainly improves the fluidity, reduces the melting point and reduces the shrinkage.Usually pure iron and cast iron at the eutectic point (about 4.7% carbon content) can be used for castingThere are many kinds of cast iron, usually grey cast iron, ductile iron and vermicular graphite iron......
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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