Tianjin's Erf metal structure co., LTD. (subordinate KaiLongGang structure co., LTD) is a positive response to the national development and environmental protection, energy-saving and efficient steel structure industry, and was engaged in steel structure of the system design, research and development, production and installation of professional firms.

We have two factories, one of which already has more than nine years of experience. And we have establish a new factory. Our company is mainly engaged in cold bending steel, cold bend profiled steel, CZU type steel; Galvanized steel, steel door frame; Hot dip galvanized steel structure; Sisheng metal manufacturing, rolled plate kaiping; Steel, strip steel, and other products

 U-shape routine specification table:

45 * 30 * 15 * (1.5 4.75)
10 * 30 * 15 (20) * (0.5 4) 160 * 60 * 20 (70) * (1-12)
15 * 60 * 40 (50) * (1-4) 180 * 60 * 20 (70) * (1-12)
20 * 80 * 40 (50) * (1-4) 200 * 60 * 20 (70) * (1-12)
20 * 90 * 40 (50) * (1-5) 220 * 70 * 20 (80) * (1-12)
50 (60) 100 * * * (1-5) 20 20 * 250 * 70 (80) * (1-12)
50 (60) 120 * * * (1-12) 20 (100) 300 * 80 * 20 * (1-12)
50 (60) 140 * * * (1-12) 20 (100) 350 * 80 * 20 * (1-12)
Not provided specifications can be customized according to customer requirements

Main features: under pressure, support time, easy to install is not easy to deformation, etc.
Main application: mainly used for mine, mine roadway secondary supporting of roadway, and mountain tunnel support purposes.