BS 1127-3: 1990 EN 24231: 1989 ISO 4231:1987 : Screwing dies and dienuts — Part 3: Specification for hand- and machine-operated circular screwing dies for parallel pipe threads; G Series
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This International Standard is a supplement to ISO 2568 and ISO 4230 and lays down the dimensions of hand-and machine- operated circular screwing dies intended for production of parallel pipe threads, G series, in accordance with ISO 228-1.
BS 1127-3: 1990 EN 24231: 1989 ISO 4231:1987 : Screwing dies and dienuts — Part 3: Specification for hand- and machine-operated circular screwing dies for parallel pipe threads; G Series