China Surface imperfection GB Standards Search Result |
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GB/T 8923.3-2009 Preparation of steel substrates before application of paints and related products - Visual assessment of surface cleanliness - Part 3: Preparation grades of welds,edges and other areas with Surface imperfections - 英文版 |
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GB/T 1185-2006 Surface imperfections of optical elements - 英文版 |
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GB/T 15757-2002 Geometrical product specifications(GPS)--Surface imperfections--Terms,definitions and parameters - 英文版 |
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