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English versions: GB/T 45626-2025
GB/T 45131-2025_Chinese: Analysis of water used in boiler and cooling system - Determination of phosphate
English versions: GB/T 13671-2025
English versions: GB/T 45561
GB/T 45577-2025 Chinese PDF (GB /T45577-2025) GB/T 45138-2024 English versions: GB/T 45626-2025GB T 45577 2025_Chinese: Data security technology Risk assessment method for data security (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45577 2025
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