
BS ISO 12778. Metallic and other inorganic coatings. Vitreous and porcelain enamels. Glass-lined flanged steel pipes and flanged steel fittings. Quality requirements
出版:British Standards Institution

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BS ISO 12778. Metallic and other inorganic coatings. Vitreous and porcelain enamels. Glass-lined flanged steel pipes and flanged steel fittings. Quality requirements
出版:British Standards Institution
专家解读视频