发布时间:2025-01-31 21:48:21
HPB 表示钢筋是光圆还是带肋?
这是一道待解决的难题您的回答被采纳后将获得系统奖励20(财富值+经验值)+难题奖励20(财富值+经验值)
答:HPB 表示光圆钢筋。
摘自《钢筋混凝土用钢第一部分:热轧光圆钢筋》GB1499.1-2008:
热轧光圆钢筋牌号:HPB300牌号的构成含义:由HPB+屈服强度特征值构成(300MPa)。英文字母含义:HPB——热扎光圆钢筋的英文(HotrolledPlainBars)缩写。设计符号:。
老红双喜08 乒乓球拍 材质:椴木 7层 横版 这样材质的底板拍 需要多少钱
2025-01-31 21:48:21 2025-01-31 21:48:21 2025-01-31 21:48:21 2025-01-31 21:48:21宜良到会泽会馆过路费多少钱_自驾游会泽到昆明的途中有哪些景区
2025-01-31 21:48:21 2025-01-31 21:48:21 2025-01-31 21:48:21 2025-01-31 21:48:21 2025-01-31 21:48:21 2025-01-31 21:48:21 2025-01-31 21:48:21 2025-01-31 21:48:21 2025-01-31 21:48:21 2025-01-31 21:48:21 2025-01-31 21:48:21 2025-01-31 21:48:21 2025-01-31 21:48:21 2025-01-31 21:48:21 2025-01-31 21:48:21 2025-01-31 21:48:21 2025-01-31 21:48:21 2025-01-31 21:48:21 2025-01-31 21:48:21 2025-01-31 21:48:21 2025-01-31 21:48:21 2025-01-31 21:48:21 2025-01-31 21:48:21 2025-01-31 21:48:21 2025-01-31 21:48:21