... dormitory, park, school, hospital, exhibition, and gas station.Technical Parameters:A)Overall weight:50~60kg/sqmB)Seismic fortification intensity:8 gradeC ... C steel1.8mmblue paint 6horizontal bracketangle iron2.0mmblue paint 7roof "A"shape beam8#C steel+50×30 flat tube1.8mm+1.0mmiron ... red8roof fastigium "A"shape beam8#C steel1.8mmiron red9roof purlin50×30 flat tube1.0mm ...