China Methods of visual fa GB Standards Search Result |
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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 . |
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GB/T 40230.2-2021 Methods of visual fatigue test and evaluation—Part 2:Visual perception function - 英文版 |
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GB/T 40230.1-2021 Methods of visual fatigue test and evaluation—Part 1:Ophthalmology and optometry - 英文版 |
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GB/T 22846-2009 Test methods of four points system for visually inspecting knitted fabrics - 英文版 |
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GB/T 23274.6-2009 Methods for chemical analysis of stannic oxide - Part 6: Determination of sulfate content - Visual turbidimetry method - 英文版 |
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