JIS G 3101:2020规定了桥梁、船舶和车辆等一般结构(以下简称钢制品)和热挤压型材所用热轧钢材的要求。
JIS G 3101:2020 specifies requirements for the hot rolled steels used for general structures such as bridges, ships and rolling stocks (hereafter referred to as steel products) and hot extruded sections.