A.耐火隔热性≥0.50h,耐火完整性≥0.50h B.耐火隔热性≥0.50h,耐火完整性≥1.OOh C.耐火隔热性≥1.OOh,耐火完整性≥0.50h D.只需耐火完整性≥0,50h
A.耐火隔热性≥0.50h,耐火完整性≥0.50h B.耐火隔热性≥1.OOh,耐火完整性≥1.OOh C.耐火隔热性≥0.50h,耐火完整性≥1.OOh D.耐火隔热性≥1.OOh,耐火完整性≥0.50h
A.n B.5 C.6 D.ns