型号    理论重量（kg/m）    型号    理论重量（kg/m）20*20*1.2    0.75            50*30*2.5    3.0225*25*1.2    0.94            50*30*3    3.640*40*2    2.29             50*32*2    2.240*40*2.5    3.02            50*35*2.5    3.3240*40*4    4.68            55*38*2    2.850*50*2.5    3.81           60*40*2.5    3.8150*50*3    4.44            60*40*3    4.4450*50*4    5.74            60*40*4    5.7460*60*2.5    4.52             70*50*4    7.0260*60*3    5.38            80*60*3    7.0960*60*4    7.02            80*60*4    8.2270*70*4    8.22           80*60*5    10.2570*70*5    10.2             90*40*2.5    5.1980*80*4    9.96            90*60*5    10.4780*80*6    13.85            100*60*3    7.3100*100*4    11.65          100*60*4    9.16100*100*8    23               100*60*5    11.53120*120*4    14.16             100*60*4.5    14.41160*160*4.5    19.2           160*80*4.5    15.84220*80*6    27.1