发布时间:2025-01-29 21:44:23
C50混凝土干重2.4T
钢筋重量要根据含筋率算
假设含筋率是70斤/平米,板厚35厘米
100/35=3
70*3=210公斤=0.27吨
总重=2.4+0.27=2.67吨
显示器面板类型va和ips哪个好va面板和ips面板各有优缺点
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