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ISO 9443:1991

Заменен
Heat-treatable and alloy steels; surface quality classes for hot-rolled round bars and wire rods; technical delivery conditions — 12 стр.
ICS
77.140.60 Steel bars and rods / Стальные прутки и катанка
77.140.10 Heat-treatable steels / Термообрабатываемые стали
77.140.20 Stainless. Including alloyed steels, corrosion-resistant steels, heat-resisting steels, etc. / Высококачественные стали