
Common wire rods in the domestic market are mainly divided into three types:
1, a generation of wire rod
First generation lean tube
Generation wire rod is the use of Z more than a kind of wire rod, is also a common people Z wire rod. Its material is steel pipe covered with plastic layer, internal with special materials to maintain rust. Domestic manufacturers are mainly concentrated in Shenzhen, especially baoan district. Vicious price competition directly leads to manufacturers making an issue of production costs. In order to control costs, a few manufacturers reduce the wall thickness and reduce the load accordingly. There are also a few manufacturers adhere to quality, do not participate in the price war, the use of 2.5mm SPCC as raw materials for the production of connectors, the metal layer of the pipe is thick enough, the anti-rust paint is uniform, this kind of pipe safety is high enough. Therefore, there is a sharp contrast in the quality of lean pipe products on the market. There is a difference in price. There are real demand users can not just look at the price.
Features:
The price is low, which can reduce the cost.
The finished product color is diverse, the connection product is very complete, the surface treatment has electrophoresis, chrome plating, zinc plating, nickel plating.
Load is related to design, and good design can have high load bearing. Is a good choice of cost-effective Z.
2. Second generation line rod
The second generation of wire rod adopts stainless steel as its material, which improves a lot in appearance. In addition, stainless steel also has the function of anti-corrosion and rust. But stainless steel
The second generation of wire rod load is lighter, the price is slightly higher than the first generation of wire rod. Generally speaking, the cost performance is not very high.
Features:
Stainless steel material, corrosion and rust proof
The cost is low and the market is competitive
Not as widely used as the first generation
The connector installation is cumbersome, and the appearance has been improved
3. Third-generation wire rod
The third generation wire rod is made of aluminum alloy and silver white in appearance. The surface is anodized to prevent corrosion and rust. There are also many improvements in connectors and fasteners. The fasteners are made of die-cast aluminum to enhance the hardness and rigidity. The load capacity is higher than that of the first generation wire rod.
Features:
Aluminum alloy material, anodized surface treatment, corrosion and rust.