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关注:1
2013-05-23 12:21
求翻译:Class 2 finish is required on all other carbon steels, cast irons etc that are prone to rusting if left in an unprotected是什么意思?![]() ![]() Class 2 finish is required on all other carbon steels, cast irons etc that are prone to rusting if left in an unprotected
问题补充: |
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