25U steel, 29U steel, steel, mining support 
 U-shaped steel is a side street side like the English letter "U" steel, and sometimes the Japanese side streets appear before the letter "industrialization" of the shape. It can be made into U25-type U-shaped steel bracket, U29-type U-shaped steel bracket, U36-type card, U-shaped steel brackets and cables and so on. Features U-shaped steel brackets: under pressure, supporting a long time, easy to install easy deformation characteristics. 
 Material: 20mnk Q235 
 Specific parameters: 

 25U height: 110mm Thickness: 17mm Weight theory: 24.76kg / m 
 29U height: 124mm Thickness: 16mm Weight theory: 29kg / m 

 Mine production is mainly used for supporting U-shaped steel bracket U-shaped steel bracket can secure stable processing quality drawings and complete documentation 
 Jining Coal professional production: 25U29U steel support, various models of hinged roof beams, long beams, hydraulic prop, and other supporting products and accessories; products are sold in more than 20 provinces, municipalities and autonomous regions, shelf, model is complete, the quality is forever, no limit services, sincerely welcome new and old friends to inquire and order!