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GB/T 26718-2024_Chinese: Technical requirements for safety system of urban mass transit (Chinese: 城市轨道交通安全防范系统技术要求)
English versions: GB/T 21369-2024
GB/T 20854-2025_Chinese: Corrosion of metals and alloys - Accelerated testing involving cyclic exposure to salt mist
English versions: GB/T 36800
GB/T 11730-2025_Chinese: Rural domestic water quantity (Chinese: 农村生活饮用水量)
GB/T 320-2025 Chinese PDF (GB /T320-2025) GB/T 33993-2024 GB/T 26718-2024_Chinese: Technical requirements forGB T 320 2025_Chinese: Synthetic hydrochloric acid for industrial use (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 320 2025
