热镀锌钢管理论重量
米定尺)
6.785 5.7608490578.8
7.47169811312.7710.8424528317.815.1132075520.517.405660382
8.03523.8033018937.6831.9924528344.437.6981132157.6548.948113217
9.7167.6783018996.35
81.80660377
00
180.6
153.3396226
管
7.3278
9.504 13.7916 19.224
22.14 30.2778 40.6944 47.952 62.262 86.0868 104.058
0 195.048