Standard Specification for Carbon and High-Strength Low-Alloy Structural Steel Shapes, Plates, and Bars and Quenched-and-Tempered Alloy Structural Steel Plates for Bridges

• 桥梁用碳素钢和高强度低合金结构钢型材、板材、棒材及经淬火和回火合金结构钢板的标准规范