Hand- and machine-operated circular screwing dies for taper pipe threads - R series (ISO/FDIS 4230:2016); German and English version FprEN ISO 4230:2016
Pipe threads where pressure-tight joints are not made on the threads - Part 1: Dimensions, tolerances and designation (ISO 228-1:2000); German version EN ISO 228-1:2003— 11 стр.
Hand- and machine-operated circular screwing dies for parallel pipe threads - G series (ISO/FDIS 4231:2016); German and English version FprEN ISO 4231:2016