计算公式：W(kg/m)=0.00785*边厚*（2边宽-边厚）型号尺寸(mm)长度(m)理论重量(kg/m)边宽边厚220343-90.8891.1452.525343-91.1241.45933030343-91.3731.7863.6363453-91.6562.1632.6544403453-91.8522.4222.9764.54534564-122.0882.7363.3693.98555034564-122.3323.0593.7704.4655.65634584-122.6243.4464.2516.5686.3634568104-123.9074.8225.7217.4699.151770456784-124.3725.3976.4067.3988.3737.5755678104-125.8186.9057.9769.03011.0898805678104-126.2117.3768.5259.65811.87499067810124-198.3509.65610.94613.47615.94010100678101214169.36610.83012.27615.12017.89820.61123.25711110781012144-1911.92813.53216.69019.78222.80912.51251012144-1919.13322.69626.19314140101214164-1921.48825.52229.49033.39316160101214166-1924.72929.39133.98738.51818180121416186-1933.15938.38343.54248.6342020014161820246-1942.89448.68054.40160.05671.168
