Cast iron rectangular manhole covers

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
-
Supply Capability:
2000套 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. 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.


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Q:How to maintain the hardware?
Always use soft cotton or sponge with neutral soap water to wipe the surface of the faucet, to avoid water containing trace amounts of carbonic acid, forming scale, and corrosion on the surface of the faucet
Q:What does "R0.5max" mean in hardware drawing?
R0.5max refers to the pointed corners, the maximum angular radius is 0.5mm., and some drawings will also say "edges and corners blunt" and other terms.
Q:Native produce is a local specialty, but hardware is not
The difference between hardware and local products1. hardware, refers to gold, silver, copper, iron, tin, five metal materials called. Hardware is the mother of industry; the foundation of national defense and the products of hardware materials are usually divided into two major categories: big hardware and hardware. Big hardware includes steel plate, steel, flat iron, steel bar, universal channel iron, iron and all kinds of industrial character; hardware for building hardware, white metal, lock nails, wire, steel wire, steel wire cutting, home hardware, tools etc..2. "local produce" means the agricultural sideline products and handicraft products produced locally.
Q:what is the Hardware classification?
Building hardware (yuan Ding wire welding and so on) decoration hardware (handle hinge bolt lock) tools (hand tools, electric tools and measuring tools, pneumatic tools) alloy cutter NC cutter head whatBuy a hardware manual, do not understand it?
Q:How do you do the hardware business?
Learn to take advantage of. For small and medium enterprises but linked to large orders can find some idle plant or equipment, in order to save the cost of investment, only need to put technology and human resources, so you can earn more profit. Once there is a market crisis, we can flexibly do a good job of market transformation, so as to avoid blind expansion.
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:What's drawing design in a hardware factory?
Hardware factory drawing design is to use CAD or proe to do some mapping and three-dimensional parts of some small parts.
Q:What kind of hardware do you have?
Hardware refers to five metals. Hardware word first appeared in the "Wu Yue" - "spring and Autumn" four Lu: "Chen Wen Yue often make ou Yezi sword making five pieces...... a reed, hardware Ying, sun jing. According to the "Han Shihuo Zhi" on the 'gold, knife, turtles, shellfish "note: Kim," five gold, yellow, gold, silver, white, red, green, copper, lead, iron, black. "Modern Chinese dictionary explains:" hardware refers to gold, silver, copper, iron, tin, generally referred to as metal. Today's hardware is commonly used as a metal or copper, iron and other products collectively. The further application of metal has played an important role in the development of human civilization, society and history. Metal products appear in every corner of economic life, political life and military activities. Such as Zhejiang, Yongkang, since ancient times has been known as "hundred workers of the township", hardware, handicraft industry is a long history. Since the Southern Song Dynasty had to make a living in Yongkang, go out to travel extensively, coppersmith blacksmith, history of early "metal craftsmen go Quartet, Fu County from Kang". History into modern industrial society, metal hardware industry is the rapid development of hardware industry, which has played an important role in the development of national economy, hardware has become an indispensable link in the industrial manufacturing industry.
Q:What is suitcase hardware? Do you know?
Luggage hardware accessories can be classified according to the following: material, shape, color, specifications and so on.
Q:Is the hardware store profitable?
You sell high profits on the high, similar to low

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