
HEAT-TREATABLE STEELS, ALLOY STEELS AND FREE-CUTTING STEELS - PART 3: CASE-HARDENING STEELS (ISO 683-3:2016)
出版:German Institute for Standardisation (Deutsches Institut für Normung)

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HEAT-TREATABLE STEELS, ALLOY STEELS AND FREE-CUTTING STEELS - PART 3: CASE-HARDENING STEELS (ISO 683-3:2016)
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频