c型鋼理論重量表大全
hbatcm2kg/mC8080401523.742.72C10010050152.55.234.11C12012050202.55.984.7C120120602037.656.01C140140602038.256.48C160160702039.457.42C18018070 8.64C20020070 9.12C22022070 9.6C240240100 11.52C260260100 12C280280100 12.48C300300100 12.96