发布时间:2025-01-20 05:45:07
矩形钢管理论重量计算方法:(边长+边长)×2×壁厚×0.00785×长度 (单位:kg/m)
方形钢管理论重量计算方法:边长×4×壁厚×0.00785×长度 (单位:Kg/m)
如:计算100*50*3.75矩形钢管一米重量
(100+50)×2×3.75×0.00785×1=17.6625kg/m
红宝石墙布窗帘10077鹰击长空 搏击202310078 冬训营圆满结束
2025-01-20 05:45:07 2025-01-20 05:45:07 2025-01-20 05:45:07 2025-01-20 05:45:07 2025-01-20 05:45:07 2025-01-20 05:45:07 2025-01-20 05:45:07 2025-01-20 05:45:07 2025-01-20 05:45:07 2025-01-20 05:45:07 2025-01-20 05:45:07 2025-01-20 05:45:07 2025-01-20 05:45:07 2025-01-20 05:45:07 2025-01-20 05:45:07 2025-01-20 05:45:07 2025-01-20 05:45:07 2025-01-20 05:45:07 2025-01-20 05:45:07 2025-01-20 05:45:07 2025-01-20 05:45:07