标准号:IS 6172-1979
发布日期:1979/10/1 12:00:00
实施日期:1999/12/31 12:00:00
适用范围:Covers the dimensions and requirements for hand taps for parallel pipe threads, G Series and Rp Series, conforming to IS : 2643 ( Parts I to III ) - 1975 ' Dimensions for pipe threads for fastening purposes (first revision ) ', and IS: 554-1975 'Dimensions for pipe threads where pressure tight joints are required on threads (second revision ) ', respectively.