liuxilin1215 发表于 2017-10-20 13:19:48

ISO 9587-2007 Metallic and other inorganic coatings — Pretreatment of iron or

ISO 9587-2007 Metallic and other inorganic coatings — Pretreatment of iron or steel to reduce the risk of hydrogen embrittlement



admin 发表于 2017-10-23 16:22:30

谢谢您的分享,金币已奖励!
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