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GB/T 13871.4-2023 Chinese PDF (GB/T13871.4-2023) GB/T 1480-2025 English versions: GB/T 45421-2025
GB/T 13871.4-2023 Chinese PDF (GB/T13871.4-2023) GB/T 1480-2025 English versions: GB/T 45421-2025
$39.00
Description
English versions: GB/T 45421-2025
English versions: GB/T 45121-2024
English versions: GB/T 22474-2025
5-2025_Chinese: Uncut finished spectacle lenses - Part 5: Abrasion-resistant of surfaces test methods (Chinese: 眼镜镜片 第5部分：表面耐磨试验方法)
GB/T 45457
GB/T 13871.4-2023 Chinese PDF (GB/T13871.4-2023) GB/T 1480-2025 English versions: GB/T 45421-2025GB T 13871. 4 2023_Chinese: Rotary shaft lip type seals incorporating elastomeric sealing elements Part 4: Performance test procedures (Chinese: 4) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 13871. 4 2023
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 GB/T 1480-2025 English versions: GB/T 45421-2025){kind=link}
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