GB/T 40316-2021汽车结构用高强度异型及圆形焊接钢管Welded high strength shaped and round steel tubes for automobile structure GB/T 40316-2021汽车结构用高强度异型及圆形焊接钢管Welded high strength shaped and round steel tubes for automobile structure

GB/T 40316-2021汽车结构用高强度异型及圆形焊接钢管Welded high strength shaped and round steel tubes for automobile structure

  • 标准类别:[GB] 国家标准
  • 标准大小:
  • 标准编号:GB/T 40316-2021
  • 标准状态:
  • 更新时间:2022-03-18
  • 下载次数:
标准简介

GB/T 40316-2021汽车结构用高强度异型及圆形焊接钢管Welded high strength shaped and round steel tubes for automobile structure

标准截图