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GB/T 13815
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 1346-2024_Chinese: Test methods for water requirement of standard consistency
English versions: GB 15269-2025
English versions: GB/T 18822
GB/T 15316-2024 Chinese PDF (GB /T15316-2024) GB 45185-2024 GB/T 13815GB T 15316 2024_Chinese: General principles for energy saving monitoring and testing techniques (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 15316 2024
