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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 23480-2025_Chinese: Small hole drilling electrical discharge machines - Testing of the accuracy (Chinese: 电火花小孔加工机床 精度检验)
English versions: GB/T 45057-2024
GB/T 45380-2025_Chinese: Non-destructive testing - Nonlinear ultrasonic testing method of microstructure damage (Chinese: 无损检测 组织结构损伤非线性超声检测方法)
English versions: GB/T 19799
GB/T 45390-2025 Chinese PDF (GB /T45390-2025) GB/T 45272-2025 2-2025_Chinese: Petroleum and natural gasGB T 45390 2025_Chinese: Communication interface requirements for power lithium battery production equipment (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45390 2025
