BS EN ISO 683-4:2018

Действует

Heat-treatable steels, alloy steels and free-cutting steels. Free-cutting steels — 30 стр.

ICS

77.140.10 Heat-treatable steels / Термообрабатываемые стали

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