标准号:DIN 20400-1990
中文标准名称:采矿用圆螺纹.大承载深度螺纹
英文标准名称:Knuckle threads for the mining; threads with large load-bearing depth
标准类型:J04
发布日期:1999/12/31 12:00:00
实施日期:1999/12/31 12:00:00
中国标准分类号:J04
国际标准分类号:3820
适用范围:Threads as per this standard are used in underground mining. They are designed for lowest-possible unit pressure and highest-possible safety against corrosion.