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U channel bar is a steel English like the letter "U" with a cross section, sometimes with a cross section of Japanese letters "better" shape.
The latest standard, issued in 2008, was introduced in April 1, 2009 and recommended by the national standards
U channel bar bracket
Main features: large pressure, long support time, easy installation, not easy to deformation and so on.
Main uses: mainly used in mine roadway, roadway support, and two times of the tunnel supporting etc..
As the main shape steel for the retractable metal support of tunnel, U channel bar is widely used at home and abroad.
However, because of the inconsistent understanding of the properties and requirements of U channel bar, the shape, geometrical parameters and material of U channel bar are different from each other.
There are four types of U channel bar produced in our country, 18U, 25U, 29U and 36U. Among them, the first two kinds of 60s products, belong to the waist positioning; the latter two are 80s products, is the ear positioning. U18 is rarely produced because of its low carrying capacity.
Founded in 2000, China Lucky Steel Co., Ltd. has become one of the leading suppliers of steel products in China. We have two factories and four marketing centers with more than 30 production lines and an annual capacity of 900,000 metric tons.
The company mainly specialized in various kinds of steel products, such as hot-dipped galvanized steel pipe, ERW black steel pipe, deformed steel, round bar steel, seamless steel pipe, spiral pipe, angle steel, I-beam, steel channel... We can also customize products according to orders, fulfilling all customers’ requests by providing convenient one-stop service. The company has been certified by BV, and all production process is strictly conforms to the international standard of ASTM A53, BS 1387, JIS G3444, DIN 2440, APL 5L and GB/T 628 to ensure the quality.
China Lucky Steel always adhere to the tenet of "loyalty and service first", taking sincerity as our life. "To satisfy customers" is our constant business principle. Since the establishment, we have been playing an active role in city construction, especially in 2008 Qingdao Olympics, Undersea tunnel, sea-crossing bridge. We have accumulated much experience in this line, and our products have been well sold worldwide. Through years' development, we have built up great reputation in quality and services among customers all over the world.
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