BS 949-3:1982

Заменен

Screwing taps, Specification for taps for pipe threads (G series, R$dp series and R$dc series) — 19 стр.

Заменен на

BS 949-5:1990

ICS

25.100.50 Taps and threading dies / Метчики, резьбонарезные плашки

01.040.25 Manufacturing engineering (Vocabularies) / Машиностроение (Словари)