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GB/T 30237-2025_Chinese: Deteriorations and legends of ancient wall paintings (Chinese: 古代壁画病害与图示)
English versions: GB 31661-2025
English versions: GB/T 30637-2025
English versions: GB/T 23500-2025
GB/T 44797-2025_Chinese: Microwave hybrid integrated circuits - Synthesized frequency sources (Chinese: 微波混合集成电路 合成频率源)
GB/T 31968-2025 Chinese PDF (GB /T31968-2025) GB/T 27930.2-2024 GB/T 30237-2025_Chinese: Deteriorations and legendsGB T 31968 2025_Chinese: Rare earth composite yttrium zirconium oxide ceramic powder (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 31968 2025
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