asnt2012 发表于 2017-11-19 18:52:54

ISO 28721-1 2008 Vitreous and porcelain enamels - Glass-lined

ISO 28721-1 2008 Vitreous and porcelain enamels - Glass-lined apparatus for process plants - Part 1: Quality requirements for apparatus, components, appliances and accessories


admin 发表于 2017-11-20 18:46:01

谢谢您的分享，金币已奖励!
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