发布时间:2025-01-16 12:39:47
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
用剪钳剪下来的零件如果没有笔刀的话能不能直接用1500的砂纸打磨
2025-01-16 12:39:47 2025-01-16 12:39:47 2025-01-16 12:39:47 2025-01-16 12:39:47 2025-01-16 12:39:47 2025-01-16 12:39:47 2025-01-16 12:39:47 2025-01-16 12:39:47 2025-01-16 12:39:47 2025-01-16 12:39:47 2025-01-16 12:39:47 2025-01-16 12:39:47 2025-01-16 12:39:47 2025-01-16 12:39:47 2025-01-16 12:39:47 2025-01-16 12:39:47 2025-01-16 12:39:47 2025-01-16 12:39:47 2025-01-16 12:39:47 2025-01-16 12:39:47 2025-01-16 12:39:47 2025-01-16 12:39:47 2025-01-16 12:39:47 2025-01-16 12:39:47 2025-01-16 12:39:47