Nodular cast iron composite manhole covers

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
10 m.t.
Supply Capability:
500 m.t./month

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Product Description:

Material: ductile iron QT500-7

Tensile strength: 500 n / 2 MM

Elongation rate: 7%


Spraying: ductile iron manhole covers on the surface treatment is the antirust bituminous paint spraying, the treatment is commonly used coating of casting.

Packing: packed in wooden pallet, steel bar


Knot, external plastic film

Process: sand casting, pure manual model


Our company covers has the following features:

1, the environmental noise. No noise, the product of environmental protection board and box after lathe processing, can make the plate and frame to 100%.

2, high load capacity.

3, security ability. This product adopts double security design, anti-theft performance is better, more powerful guarantee traffic safety.

4, long service life. The product of guard against theft, prevent noise set is firm, durable.


This product applicability is wide and can be used in tap water in urban construction, municipal drainage pipeline inspection Wells, heating, gas inspection Wells, postal services, telecommunications, communications, cable pipe Wells, power line well, street lamps, well well, fire control, all kinds of valves, anti-corrosion project, open ditch cover plate, and can be manufactured according to customer's special needs.


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Q:What does "R0.5max" mean in hardware drawing?
The maximum chamfer diameter is 0.5; the general unit is MM, MIN: minimum MAX: maximum
Q:What kind of goods do you need to open a hardware store?
There are a lot of ah, tools, parts, screws, bearings, lighting, electrical materials, water cooler, there are some other configurations, such as titanium alloy frame. If you want to shop, you can go to shentop Hotel Web browsing, there are many types of him, should be for you.
Q:Hardware should be how to buy?
See matching. Bathroom three large sanitary ware in the bathroom occupies the largest position, therefore, can not let sanitary ware to match hardware fittings, but let hardware fittings and sanitary ware match. In the purchase of bathroom hardware accessories, we must consider whether these accessories and purchased sanitary ware match. There are a variety of hardware accessories market, consumers in the choice should pay attention to color, materials and models is consistent with the overall style of the decoration bathroom, if only their own love, it is likely to last pick parts placed in the bathroom will be awkward.
Q:There is a round piece of hardware, want to buy online, do not know what the name of the call for help
It should be called the positioning buckle I did, mechanical processing, such as small parts, you'd better buy it is issued, all sorts of strange things, it is easy to make a mistake, but you choose to shop also choose related shops, just like the kitchen and bath monopoly store,
Q:what is the Hardware classification?
Cutting power tools @| hammer drill | | bench drill, drill | electric beveling machine | | chainsaw cutting machine | stone cutting machine | impact drill | electric scissors | | electric planer woodworking engraving machine engraving machine | | woodworking trimmer | other cutting power tools
Q:Do their own cabinets, cabinets hardware where can I buy?
Cabinet hanging yards, preferably hidden style. Handle should be rich, general building materials city is not rich enough, hinge, better. Foot, the kind of adjustable, engineering plastics can. Materials such as fire boards
Q:How to distinguish the advantages and disadvantages of bathroom hardware?
Bathroom hardware raw materialsSuperior products: general use fine cast pure copper, high-quality zinc alloy or titanium alloy as raw material, tight structure, heavy weight, feel thick. Raw material, YISHION and copper are preferred.Liepin: general use of inferior zinc alloy recycled materials as raw materials, and cut corners to reduce costs, loose structure, light weight, feel light
Q:Want to know the function and choice of cabinet hardware parts
The hardware is a hinge, drawer frame those things, now popular with buffer hinge, door close to half will be closing on their own, do not shut the bang, but the quality is the key, choose a better brand.If you want to benefit, or choose the traditional hinge, but the quality is still the first.
Q:What do hardware mainly do?
Hardware: traditional hardware, also known as "hardware"". Of five metals: gold, silver, copper, iron, and aluminum. By artificial processing, you can make knives, swords and other art or metal devices. The hardware of modern society is more extensive, such as hardware tools, hardware parts, daily hardware, construction hardware and security products. Most hardware products are not final consumer goods.Many kinds of hardware products, different specifications of hardware products, but in the Home Furnishing decoration also plays an irreplaceable role, choose a good hardware accessories can make a lot of decoration materials use more safe and convenient. Actually, there are more than ten kinds of hardware products in the materials market.
Q:What are door hardware included?
HingeSharp hinges and dark hinges are the kind of hinge that we usually see when most doors are used, and there is no bounce back. The dark hinge is mostly used for furniture and can be divided into hydraulic, fast loading, frame doors and plain.

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