标准号:IS 6311-1978
发布日期:1979/1/1 12:00:00
实施日期:1999/12/31 12:00:00
适用范围:Covers the requirements of screw thread measuring cylinders used for checking ISO metric screw threads and pipe threads covered in IS : 554-1975 ' Dimensions for pipe threads where pressure tight joints are required on the threads (second revision)' and IS: 2643 (Part I )-1975 ' Dimensions for pipe threads for fastening purposes: Part I Basic profiles and dimensions '.