厚度:mm 菱形:
Kg/m2
扁豆形:
2.521.622.6
325.626.6
3.529.530.5
433.434.4
4.537.338.3
542.342.3
5.54
6.246.2
650.150.1
75958
866.865.8花纹钢板理论重量计算