BS 224:1938

Заменен

Specification for steel for die blocks for drop forging — 12 стр.

Заменен на

BS 4659:1989

ICS

77.140.35 Tool steels / Инструментальные стали

77.140.20 Stainless. Including alloyed steels, corrosion-resistant steels, heat-resisting steels, etc. / Высококачественные стали