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GBZ45463-2025_Chinese: Method for porosity measurement of thermally sprayed coatings (Chinese: 热喷涂涂层孔隙率的测定)
GB 23826-2025_Chinese: Light-emitting diode variable speed limit signs of motorway (Chinese: 高速公路LED可变限速标志)
English versions: GB/T 18774-2023
English versions: GB/T 16472-2024
GB/T 19267.7-2023 Chinese PDF (GB/T19267.7-2023) GB/T 45525.1-2025 GBZ45463-2025_Chinese: Method for porosity measurementGB T 19267. 7 2023_Chinese: Forensic sciences Physical and chemical examination of trace evidence Part 7: Gas chromatography mass spectrometry (Chinese: 7 ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 19267. 7 2023
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