China Assembled spectacles GB Standards Search Result |
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GB/T 13511.3-2019 Assembled spectacles—Part 3:Single-vision near-vision spectacles 配装眼镜 第3部分:单光老视成镜 - 英文版 |
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GB 13511.2-2011 Assembled spectacles - Part 2:Progressive power 配装眼镜 第2部分:渐变焦 - 英文版 |
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GB 13511.1-2011 Assembled spectacles - Part 1: Single-vision and multifocal 配装眼镜 第1部分:单光和多焦点 - 英文版 |
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