圆钢 kg/mP=0.00617×直径²50.1545.50.18760.2226.50.2670.30280.39590.499100.617110.746120.888131.04141.21151.39161.58171.78182192.23202.47212.72222.98233.2624...[查看详情]
钢材，相信绝大多数人都见到过，它的用途非常广泛，但我们最熟悉的估计是用于搭建新房了。钢材根据形状的不同又分为圆钢、方钢、扁钢等，我们今天要介绍的圆钢是指截面...[查看详情]
