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English versions: GB/T 31318-2025
English versions: GB/T 35150
GB/T 27069-2025_Chinese: Guidelines for the mutual recognition evaluation of product conformity assessment results (Chinese: 产品合格评定结果相互承认评价指南)
GB 12358-2024_Chinese: Gas detection and alarm instruments for workplace - General technical requirements (Chinese: 作业场所环境气体检测报警仪器 通用技术要求)
GB/T 31235-2024 Chinese PDF (GB /T31235-2024) GB/T 21551.4-2024 English versions: GB/T 31318-2025GB T 31235 2024_Chinese: Technical specification for fittings of 800 kV DC overhead transmission line (Chinese: 800kV) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 31235 2024
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