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English versions: GB 17761-2024
English versions: GB/T 29301-2024
GB/T 32960
2-2025_Chinese: Petroleum and natural gas industries - Materials for use in H2S-containing environments in oil and gas production - Part 2: Cracking-resistant carbon and low alloy steels
GB/T 35205
GB/T 40064-2024 Chinese PDF (GB /T40064-2024) GB/T 17818-2025 English versions: GB 17761-2024GB T 40064 2024_Chinese: Guidelines for assessment of energy saving technologies (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 40064 2024
