发布时间:2025-01-16 12:33:36
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
急求家里是一楼光线比较暗现在是淡淡的粉红色瓷地板白墙请问配什么红的门什么材质比较好
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