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English versions: GB/T 17215
English versions: GB 28263-2024
English versions: GB 45671-2025
measuring or monitoring of protective measures - Part 11: Effectiveness of residual current monitors(RCM)in TT
GB/T 20854-2025_Chinese: Corrosion of metals and alloys - Accelerated testing involving cyclic exposure to salt mist
GB 5009.18-2025 Chinese PDF GB/T 15566.2-2024 English versions: GB/T 17215GB 5009. 18 2025_Chinese: National food safety standard Determination of fluorine in foods (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB 5009. 18 2025
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