7 # π steel, 7 π-beams, steel row 
 π steel is mainly used for making the top DFB metal beam, π-beam, π-type long beam, DJB hinged top beam 
 Specific parameters: 
 1 Material: 27simn 
 2 legs high: 45mm outer width: 100mm 
 3 in width: 83mm thick waist: 8mm gear from: 52mm Diagonal: 125mm 
 4 Length: 9.6 m 9.85 m 
 5 Packaging: 48 / piece 
 Large supply of Jining Coal: 7 # π steel, 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 complete model, quality is forever, no limit services, sincerely welcome new and old friends to inquire and order!