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GB/T 20972.2-2025 Chinese PDF (GB /T20972.2-2025) GB/T 20854-2025 English versions: GB/T 19088-2024

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English versions: GB/T 19088-2024

English versions: GB/T 17215

English versions: GB/T 24823-2024

English versions: GB/T 19598-2025

GB/T 20972.2-2025 Chinese PDF (GB /T20972.2-2025) GB/T 20854-2025 English versions: GB/T 19088-2024GB T 20972. 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, and the use of cast irons (Chinese: 2) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 20972. 2 2025

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