发布时间:2025-01-29 10:39:18
钢材密度按7850千克/立方米计算,
方通重量为:
(0.2X0.2-0.18X0.18)X1X7850
=59.66千克/米
=59.66公斤/米
请问要是160平方米的一层民房用混凝土封顶的话建筑下来大概要多少钱啊
2025-01-29 10:39:18 2025-01-29 10:39:18 2025-01-29 10:39:18 2025-01-29 10:39:18 2025-01-29 10:39:18 2025-01-29 10:39:18 2025-01-29 10:39:18 2025-01-29 10:39:18 2025-01-29 10:39:18 2025-01-29 10:39:18 2025-01-29 10:39:18京瓷 c8520 a4打印12000张随机3000张什么意思
2025-01-29 10:39:18 2025-01-29 10:39:18 2025-01-29 10:39:18 2025-01-29 10:39:18 2025-01-29 10:39:18 2025-01-29 10:39:18 2025-01-29 10:39:18 2025-01-29 10:39:18 2025-01-29 10:39:18 2025-01-29 10:39:18 2025-01-29 10:39:18 2025-01-29 10:39:18