GB/T 14207-2024 Chinese PDF (GB/T14207-2024) GB/T 45147-2024 GB 28286-2024_Chinese: General requirements of

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4-2025_Chinese: Acoustics - Laboratory measurement of sound insulation of building elements - Part 4: Measurement procedures and requirements (Chinese: 声学 建筑构件隔声的实验室测量 第4部分：测量程序和要求)

2-2025_Chinese: Information technology - Abstract Syntax Notation One (ASN

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GB/T 14207-2024 Chinese PDF (GB/T14207-2024) GB/T 45147-2024 GB 28286-2024_Chinese: General requirements ofGB T 14207 2024_Chinese: Test method for water absorption of sandwich constructions or cores (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 14207 2024