China Semi-finished specta GB Standards Search Result |
1. Ready translated GB standards and Chinese version GB Standards, you can purchase directly in the web page; After receive your payment, we will send the GB Standards PDF file to your Email within
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2. Other English version GB Standards are not ready translated, only after get your order, then we translate them, time usually need 3-5 days . |
GB 27995.2-2011 Semi-finished spectacle lens blanks - Part 2: Specifications for progressive power lens blanks 半成品眼镜片毛坯 第2部分:渐变焦眼镜片毛坯规范 - 英文版 |
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GB 27995.1-2011 Semi-finished spectacle lens blanks - Part 1: Specifications for single-vision and multifocal lens blanks 半成品眼镜片毛坯 第1部分:单光和多焦点眼镜片毛坯规范 - 英文版 |
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