This secind edition cancels and replaces the first edition (ISO 4231:1977). Is a supplement to ISO 2568 and ISO 4230 and lys down the diemensions of these screwing dies intended for production of parallel pipe threads in accordance with ISO 228-1. Diameter, thickness and fixing dimensions are accordance with ISO 2568 so as to permit the driving of and-oprated dies with the aid of the die stocks defined in that document.
Текущий статус : WithdrawnДата публикации : 1987-11
Версия : 2
Технический комитет:Tools with defined cutting edges, holding tools, cutting items, adaptive items and interfaces