Heavy manhole cover

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500吨 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. This product environmental noise.

2, high load capacity. The product load D400

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 are the commonly used hardware materials? What are their respective properties?
Cold rolled steel sheet (SPCC), ----SAE1006, SAE1008Features: smooth finish - good mechanical properties, smooth surfaces with fine abrasive lines. Blunt surface treatment with good mechanical properties, fog, matte finish.Purpose: because it contains a small amount of residual elements, corrosion resistance and excellent, so it is widely used in galvanized or colorOn galvanized steel sheet, suitable for hardware products with special surface requirements.
Q:The bathroom hardware should be stainless steel or Aluminum Alloy it?
The preferred stainless steel with good economic condition has the advantages of easy cleaning and durability, and strong toughness
Q:What does hardware refer to? What's the use?
Gold, silver, copper, iron, tin, traditional hardware, also known as "hardware"". Refers to iron, steel, aluminum and other metal, through forging, calendering, cutting and other physical processing made from a variety of metal devices. Such as hardware tools, hardware parts, daily hardware, construction hardware and security supplies. Most hardware products are not final consumer goods.
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:How do housekeeping refer to hardware accessories with good or bad?
Imported hinge due to material requirements, the general weight of domestic hinge than 20% to 30%, the surface plating smooth and delicate. Besides, the edge of the hinge spring plate is processed smoothly and orderly, and the high quality hinge is additionally provided with nylon protector. The edge of many spring hinges made in China is not polished and has burrs.
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:I opened a small hardware factory, and I also have a few punch, want to do hardware accessories, and do not know what kind of good to do, good money, beg!
Small pieces, as long as the amount, you can certainly make money steadily
Q:Does hardware affect the tightness of doors and windows?
Let me put it briefly.The main window is divided into windows, windows and wood windows and other types of.It is made of glass, section bar, hardware, sealing strip and so on. The sealing of doors and windows is made up of all parts, including the quality of the glass, the quality of the profiles, the quality of the sealant (mainly), the quality of the hardware, the quality of the doors and windows.The tightness is mainly related to the sealing strip they use. For example, the common casement window adopts three yuan ethylene propylene sealant strip, while the sliding window adopts the sealed top.
Q:What are the laws and regulations of hardware?
Is the hardware must ensure the safe and reliable use, safety accidents caused by quality factors cannot, if the quality safety accidents caused, the producer must undertake the corresponding administrative or criminal liability. The laws in this respect are mainly safety production law, quality law, consumer law, and so on. More general, but more formal.
Q:Is the hardware store profitable?
You sell high profits on the high, similar to low

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