China National Standards

China Glasses lenses Industry Standards English PDF List

  •  China " Glasses lenses" Industry Standards English PDF List:
    • Standard  Code Standard Title Standard Class Order
    QB/T 2506-2017 (Glasses lenses optical resin lenses)
    眼镜镜片 光学树脂镜片    		 China Light Industry Standards
    Glasses lenses
    English PDF

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