• 20 Inch Cast Iron Manhole Cover with Frame System 1
  • 20 Inch Cast Iron Manhole Cover with Frame System 2
  • 20 Inch Cast Iron Manhole Cover with Frame System 3
  • 20 Inch Cast Iron Manhole Cover with Frame System 4
  • 20 Inch Cast Iron Manhole Cover with Frame System 5
  • 20 Inch Cast Iron Manhole Cover with Frame System 6
20 Inch Cast Iron Manhole Cover with Frame

20 Inch Cast Iron Manhole Cover with Frame

Ref Price:
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Loading Port:
Dalian
Payment Terms:
TT OR LC
Min Order Qty:
110 set
Supply Capability:
4100 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.


Specifications

Double triangle ductile iron manhole cover
1.Standard:ISO 9001 EN124 D400
2.Service:OEM
3.High quality
4.Made of ductile


20 Inch Cast Iron Manhole Cover with Frame


Advantage of ductile iron

Higher quality /higher tensile
Higher security /long life      

Possibilities of new locking systems


Packaging and Shipping

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

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


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 


Pictures

20 Inch Cast Iron Manhole Cover with Frame


20 Inch Cast Iron Manhole Cover with Frame


FAQ:

Why imported Composite Manhole cover/Grating fromChina?

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

Q: How is the silicon sol precision casting part priced? What is the price per ton of casting? Such as 304 material.
Yantai five God casting is generally 53 yuan /kg, the appearance is quite beautiful
Q: Casting parts need to be subjected to the kind of heat treatment after the weldment is finished
1, gray cast iron: General graphite annealing, to be heat treatment annealing, surface hardening etc.; ductile iron can be various: annealing, normalizing, quenching and isothermal quenching, surface treatment, chemical heat treatment.2. Pouring liquid metal into the casting cavity which adapts to the shape of parts. After cooling and solidification, the casting method is called casting. Castings obtained by casting are called castings. Casting structure design: ensure the working performance and mechanical performance requirements, consider the technical requirements and performance of alloy casting casting casting structure, casting structure design is reasonable or not, the casting quality, productivity and cost has a great influence.3. Heat treatment is a metal hot working process in which the material is in solid state by means of heating, heat preservation and cooling to obtain desired microstructure and properties
Q: Why do cheap cars like stamping parts instead of casting parts?
Separation process is also called blanking, the purpose is to make the stamping parts along a certain contour line from the sheet metal separation, at the same time guarantee the quality requirements of the separation section. Stamping is a highly efficient production methods, the use of compound die, especially the multi station progressive die stamping process can be completed in a multi machine, realized by belt uncoiling, leveling, punching, forming and finishing automatic production. High production efficiency, good working conditions, low production costs, can produce hundreds of parts per minute. The purpose of forming processes is to allow the sheet to undergo plastic deformation without breaking the billet and to make the desired shape and size. In actual production, a variety of processes are often applied to a workpiece. Blanking, bending, shearing, drawing, bulging, spinning, and straightening are the main types of stamping machines.
Q: In theory, which is more expensive, forging parts or casting parts?
Compared with the price, the product with the same simple structure eliminates the material factorsThe forgings must be more expensive
Q: What are the casting parts processing engineering?
According to the classification of process methods, sand casting and special casting.
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: What should I pay attention to when designing a casting structure?
1 of the casting in metal mold cooling was faster than sand, metal type and let, thus casting in metal mold casting, casting stress generated in the ratio of sand casting to crack tendency is also large, but also prone to misrun and cold lap, white (for casting casting). Defect. Usually: (1) in the prevention of metal casting casting crack aspect should pay attention to the following problems: the structure of A in wall thickness, wall transition and connection to the ease, corner fillet appropriate requirements such as should be more strict than sand casting; B should be connected vertically connected with the wall to tilt C; for the weak parts of the structure should be set to strengthen ribs, bosses, to prevent casting; D should minimize the obstacle free shrinkage of the boss, casting rib, flange and other prominent part; E in the casting arrangement of ribs, but also should consider its influence on the casting shrinkage.
Q: Which surface is coarser for cast iron or cast steel castings? Why?
The surface of the steel is more rough, because the coating sand cast steel cast iron particles compared with graphite coating degree, the other one is to get a better air permeability and collapsibility of sand, the compaction degree is smaller than iron. Roughness mainly depends on the surface roughness on the surface of the sand.
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: How to solve casting defect casting?
Different defects, different solutions, some shortcomings, the current domestic level can not be resolved

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