hgundas 发表于 2020-4-20 03:57:29

ISO 683-14:2004 Heat-treatable steels, alloy steels and free-cutting steels —



ISO 683-14:2004
Heat-treatable steels, alloy steels and
free-cutting steels —
Part 14:
Hot-rolled steels for quenched and
tempered springs


admin 发表于 2020-4-25 23:19:30

谢谢您的分享，金币已奖励!
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