Cast Iron Concrete Manhole Covers for Sale in China
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 kg
- Supply Capability:
- 4300 kg/month
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Specification
Product Description
1.Advantages: Good compressive, bending and impact strenth,anti-corrosion, not rust, long service life
(at least 30 years). The quality meets the same kinds cast ion manhole covers but the cost is 30% lower than. Contain no metal and no recovery value, anti-theft.
2.Applications: water supply and drainage, fire engineering, natural gas,electricity and telecommunications, street lamp and outdoor illuminations.
3.Designs: based on EN124 standard and according to customer's drawing or samples.
4.Color: black, Grey, green, blue and Marble , etc.
5.Inspection: in-house or the third party as per customer's request.
Features
1.High Intensity
It adopts macromolecule complex material and reinforcing steel bar moulded by high temperature and press at one time.
2.Durable
Acid-alkali and corrosion resistance; anti-rust; insulation; weatherability; excellent anti-pressure capability.
3.Unique appearance
Rich colors;the cover is not sprayed in surface but painted in whole material so that the color can keep lasted.
4.Competitive price
The price of compound manhole cover is lower than stipulated standard cast iron ones.
5.Save mine resource
It is made by regenerated resin or regenerated plastic raw material, which save application of cast iron.
Packing
Ductile Iron Manhole Cover and Grating
Our company
Ductile Iron Manhole Cover and Grating
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.
FAQ
1. Can I negotiate the Prices?
Yes, we may consider discounts for bulk orders.
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. How long will it take to execute my order?
For the stock items , we can arrange the shippment within 3-5 days after received your payment . For the customized items , we will indicate the delivery time in the quotation sheet .
4. Can you give warranty of your products?
Yes, we extend a 100% satisfaction guarantee on all items. Please feel free to feedback immediately if you are not pleased with SYI 's quality or service. For the overseas orders,if there is quality problem , please kind to provide the pictures to show the problems by e-mail . We will provide the replacements to you at our cost according to actual conditions.
- Q: What are the factors affecting the machining process of the casting material and structure?
- As for the metallographic structure, usually the finished products after casting are treated by heat treatment. The mechanical properties of the carbon steel after heat treatment (quenching and tempering) are detected. The stainless steels are treated by heat treatment (solid solution, etc.) and the metallographic structure is analyzedThere is a lot of talk and a bit of confusionIf you have a specific brand, you can search for Baidu or buy tools
- Q: our factory now produces steel castings in the use of polishing directly after spraying processing, but the powder sprayed 15But the spray powder touched off what is the reason we are not very strict requirements not only need to peel off bubbles can also, because our products are steel castings so we use steam hole sludge put on. Do not know if this spray treatment has no effect to thank friends with us!
- Cast iron has not been done, if it is iron, then in the spray before going through strict pretreatment, the surface can not have a little oil dust
- Q: Explain the heat treatment effect of casting parts, forging parts and welding parts
- Good welding of low carbon steel (alloy), probably because the weld workpiece rigidity, fast cooling, the weld internal crystallization of brittle microstructure (martensite), so after welding or welding process welding using self heat, reasonable arrangement of weld, welding seam and heat affected zone heat treatment. The welding heat treatment is often used to preheat before welding, after welding withasbestos cloth covering slow cooling annealing, reach the purpose, its main function is to reduce the internal stress, improve the weld microstructure of martensite formation, reduce brittle tendency, preventing welding cracks.
- Q: In theory, which is more expensive, forging parts or casting parts?
- It depends on the structure. In theory, the shape of the forging is relatively simple, but the requirement of internal structure is relatively high
- Q: How to cast iron and wrought iron collocation
- 3, if you have a file in the hand, can be used to file to see finish can also make a judgment from the file down the iron can also be seen, but this is beyond your request, it can be done in the factory. 4, if placed in the grinder grinding, see iron spark from a judge or iron wrought iron, but this is only to do in the factory. About it, may not be full, but through these methods, generally can distinguish between iron or wrought iron.
- 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: As shown, how do I achieve the tightness test of this product, and achieve industrial production? Seek expert advice.
- Precise and tight sealing of the surface to which the test piece is to be tested, equipped with an airtight test instrument, and an electrical control system. You can complete automated testing equipment
- 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: Why should pig iron be used in casting?
- 1, in the absence of special requirements, the most important thing is that the price is cheap.2, pig iron castings quenching process requirements are not high. You can do it by hand.3, pig iron casting hardness is very large, can meet many requirements.4, pig iron castings, high temperature resistance is relatively strong. Like stoves are pig iron castings.5, pig iron casting plasticity is very bad, but in some experiments, but use this weakness to improve the sensitivity of the experiment.Wait
- Q: How can the casting be free of trachoma?
- 3, the gate is not facing sand core, flush sand core, will cause trachoma.
Send your message to us
Cast Iron Concrete Manhole Covers for Sale in China
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 kg
- Supply Capability:
- 4300 kg/month
OKorder Service Pledge
OKorder Financial Service
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