久久亚洲私人国产精品,免费同性男男黄网站在线,www.xxxxx,东京热人妻丝袜无码av一二三区观

以下即為常見鋼格柵板理論重量：

規(guī)格                    重量（公斤/平米)                   規(guī)格            重量（公斤/平米)
G203/30/100     17.543                              G203/30/50      19.543
G204/30/100     23.195                              G204/30/50      25.195
G205/30/100     28.847                              G205/30/50      30.847
G253/30/100     21.42875                          G253/30/50      23.42875
G255/30/100     35.55875                          G255/30/50      37.55875
G254/30/100     28.49375                          G254/30/50      30.49375
G323/30/100     26.8688                            G323/30/50      28.868
G325/30/100     44.9552                            G325/30/50      46.9552
G353/30/100     29.20025                          G353/30/50      31.20025
G354/30/100     39.09125                          G354/30/50      41.0912
G355/30/100     48.98225                          G355/30/50      50.98225
G403/30/100     33.086                              G403/30/50      35.086
G404/30/100     44.39                                G404/30/50      46.39
G405/30/100     55.694                              G405/30/50       57.69
G455/30/100     62.40575                          G455/30/50      64.40575
G503/30/100     40.8575                            G503/30/50      42.8575
G504/30/100     54.9875                            G504/30/50      56.987
G505/30/100     69.1175                            G505/30/50      71.117
G555/30/100     75.82925                         G555/30/50      77.82925
G605/30/100     82.541                             G605/30/50      84.541

G655/30/100     89.25275                         G655/30/50      91.25275