• composite manhole cover septic tank manhole cover ductile iron manhole cover System 1
  • composite manhole cover septic tank manhole cover ductile iron manhole cover System 2
  • composite manhole cover septic tank manhole cover ductile iron manhole cover System 3
  • composite manhole cover septic tank manhole cover ductile iron manhole cover System 4
  • composite manhole cover septic tank manhole cover ductile iron manhole cover System 5
  • composite manhole cover septic tank manhole cover ductile iron manhole cover System 6
composite manhole cover septic tank manhole cover ductile iron manhole cover

composite manhole cover septic tank manhole cover ductile iron manhole cover

Ref Price:
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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
1 set
Supply Capability:
4166 set/month

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Specification

Elongation:
< 1 %
Type description:
EN-GJL-200/-300
Tensile strength:
100 – 400 N/ mm²
Loading:
400 – 800 N/ mm²

Product Description

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

2) Color: black, Grey, green, blue and Marble , etc.

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

 


 

composite manhole cover septic tank manhole cover ductile iron manhole cover

composite manhole cover septic tank manhole cover ductile iron manhole cover



Specification

Item No.ClassClear Opening(mm)Frame Size(mm)Frame Height(mm)Unit Weight (kg/set)
CHB40B125310×310400×40030
10
CHB50B125400×400500×5004017

1. Strong corrosion resistant ability and rigidity, not easy to break.
2.Nodular cast iron products in our company use aluminum film epoxy resin sand process makes the surface more smooth, avoid burr flash do damage to pigs.
3.After improve the technology,we shrink the leak aperture of plate at sow position to 8.5-9mm(At present only we can realize it in the domestic profession) avoid too large leak lock pigs feet and do harm to sow nipple.However the traditional size is 11-12mm,what we do avoid that bad phenomenon.
4.Easy to install and clean,long lifetime.
5.We have many size and  can produce according to customer's  drawings or sample! 

 

Packaging & Shipping

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

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

 

 composite manhole cover septic tank manhole cover ductile iron manhole cover


FAQ

1. How about your price?

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

2. Can I request to change the form of packaging and transportation?

  A: Yes, We can change the form of the packaging and transportation according to your requirement, but it maybe let your purchasing cost changed also.

 3. Could you specially design and produce for clients?

  A: Of course, we have all kinds of professional engineers. We can design and produce special products according to customers' requirements. Such as: special size, special control, OEM, etc.

Q: Casting parts need to be subjected to the kind of heat treatment after the weldment is finished
Annealing is needed to eliminate stress and refine grain
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: I often see Waixiejiagong drawings, casting, how to distinguish the latheman.
Yes, casting drawings are casting drawings with machining allowances, slopes, and gating systems
Q: The difference between cement sand castings, resin sand castings and vacuum casting parts
The clay wet sand castings casting weight from a few kilograms until tens of kilograms, but the clay dry type of casting production can be weighed dozens of tons.For medium and large castings, cast iron, cast steel can be self hardening sand with resin can be water glass sand production, can obtain the precise size, smooth surface castings, but casting precision, surface roughness, density and microstructure, mechanical properties and material cost of sand casting production is often poor, so when the higher performance requirements of castings, should adopt other casting methods, such as casting (lost wax casting), die casting, low pressure casting.
Q: What's the density of the cast iron? The density is thin and the density is thin
There is a hot knot in the thick area, which easily causes microscopic shrinkage and makes the casting not dense. A riser may be added for shrinkage relief.
Q: Question, such as title, I hope I don't copy the definition of rolling and casting in Baidu encyclopedia, thank you
Service performance: heat conductivity, friction reduction, shock absorption, heat resistance and corrosion resistanceTo compare these properties, it depends on the specific material, structure, and use of the parts. Otherwise, there is no comparisonS
Q: What is the casting material?
The casting material is usually made of gray cast iron, nodular cast iron and vermicular graphite cast iron
Q: Would you please tell me how to use casting parts for a year?The cast of an aircraft wing needs to be put aside for a year before it breaks;Does anyone know why?
3, the resonance method is cast on its resonant frequency vibration 1060ndn, to eliminate the residual stress in casting.
Q: ZGMn13 casting parts processing, with what knife head good?
The ZGMn13 itself is not have processing, if only the processing point, sharpening, ordinary can, if the processing area is relatively large, ZGMn13 external impact load is bigger,
Q: How can the casting be free of trachoma?
Measures for the prevention of trachoma in castings:1, sand compaction to high, paint two times;

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