China National Standards

China spectacles—Part GB Standards List

  •  China "spectacles—Part" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    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    		 China National Standards
    spectacles—Part
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