型号截面面积理论重量单位长度外表面积（高度×宽度）HBt1t2rcm2㎏/m㎡/m100×10010010068821.5916.90.574265482125×1251251256.5 9830.0023.60.723265482150×150150150710839.6531.10.872265482175×1751751757.5 111351.4340.41.0126814092002008121363.5349.91.16168140920020412121371.535...

时间:2024-12-01 10:24栏目:行业资料