• C250 B125 D400 Ductile Iron Manhole Cover and Frames System 1
  • C250 B125 D400 Ductile Iron Manhole Cover and Frames System 2
  • C250 B125 D400 Ductile Iron Manhole Cover and Frames System 3
  • C250 B125 D400 Ductile Iron Manhole Cover and Frames System 4
  • C250 B125 D400 Ductile Iron Manhole Cover and Frames System 5
  • C250 B125 D400 Ductile Iron Manhole Cover and Frames System 6
C250 B125 D400 Ductile Iron Manhole Cover and Frames

C250 B125 D400 Ductile Iron Manhole Cover and Frames

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

Add to My Favorites

Follow us:


OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

Item specifice

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

Product Description

1) production standard: EN124 from A15 to F900

2) Material: grey iron, ductile iron,

3) Type:round type and Square type,triangle

4) Sand casting

5)We can produce as per customers' drawings.

6)ISO9001:2008


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. Our customer come from America, Morocco , saudi arabia, Iran , Algeria and so on

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

C250 B125 D400 Ductile Iron Manhole Cover and Frames

C250 B125 D400 Ductile Iron Manhole Cover and Frames

 

Our Services

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. Professional technical support with free charge.

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


FAQ

Why imported Composite Manhole cover/Grating from China?

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

2.Good quality, don't worry much about the quality, actually, most of the building materials you buy from Miami, Dubai ,Italy, South Africa or your local market are imported from China. So why not buy direct from China. The key point is to find a reliable supplier who is honest and professional to take care of the quality and delivery time.

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

How do we start our cooperation?

If you are wholesaler, please send us the detailed information of the products you are doing, like Cover size, clear opening size, loading Grade, we will give you our best advices. We can start from sample order. 

Sometimes if meet the size we don’t have, the new mould with your size and design can be considered from us. Let's talk more details about the New Mould and Charges. Then start our Cooperation.

Q:Why do casting parts have air holes?
First, from the source, tools, raw material drying, in the process of melting into the reaction gas, another influence is pouring process, such as high temperature solidification gas dissolved too much after not excluded. The method can adjust the pouring temperature properly, control the source of gas (drying and controlling the inoculant, especially the content of magnesium), and add cooling iron to change the solidification mode. It depends on what kind of casting you are. You can't make it clear at once. And molding sand relationship is mainly water content and permeability, brush coating resin content.
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 kind of casting process is used for cast iron parts? And what are the cast steel parts adopted?
The types and uses of foundry sand according to the mineral composition of different silica sand and non siliceous sand is divided into two categories. The main mineral composition of silica SiO2.: natural silica sand used for non-ferrous metal casting, cast iron and steel castings in small sand and core sand. The selection of natural silica sand: used in organic matter as the binder of various sand and core sand. The artificial sand for sand and core sand castings. Non siliceous sand and non siliceous sand have many kinds and different uses. Limestone sand: crushed by limestone, the main mineral composition is CaCO3, used for casting sand and core sand. Zirconium sand: the main mineral composition is ZrO2 SiO2, used for large steel castings and alloy steel pieces of core sand or sand surface sand, or powder used as coating. Magnesia: the main mineral composition is MGO, used for high manganese steel casting surface sand, core sand, and its powder can be used as coating. Chromite ore: the main mineral composition is chromite FeO. Cr2O3, used for large or special casting steel surface sand, core sand, its powder can be used as coating.
Q:What are the requirements for casting steel castings?
1, high quality requirements of the surface or the main processing surface should be placed below.
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!!!
1, qualified enterprises will directly iron ore into molten iron, and then poured into the mold, such a good product performance. I work in the cast iron industry, which I can tell you for sure.2, this, like the Great Wall Motor Company has its own parts production department, as well as the corresponding mold center, so it will be their own casting. If the manufacturer does not have these departments, they can only place orders for others to do.
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
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:The casting sand is going on
Dispersed sand inclusion is common on the surface and subcutaneous of steel castings, often concentrated on the outer surface of the upper box and the inner surface of the lower case, and a few of them are inside the cast steel parts.
Q:How can the casting be quenched and tempered?
Return, general castings (especially steel castings) commonly used heat treatment process is normalized and tempered. Of course there are completely by annealing or remove stress annealing...
Q:Heat treatment process and purpose of casting parts
Natural aging (also known as Chang Hua): lost in the open, the sun and rain, can have experienced years of wind and frost.

1. Manufacturer Overview

Location
Year Established
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates

a) Certification Name  
Range  
Reference  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:
b)Factory Information  
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range

Send your message to us

This is not what you are looking for? Post Buying Request

Similar products

New products

Hot products


Related keywords