GB/T 31239-2023 Chinese PDF (GB/T31239-2023) GB/T 22389-2023 English versions: GB/T 44953-2024

Name: GB/T 31239-2023 Chinese PDF (GB/T31239-2023) GB/T 22389-2023 English versions: GB/T 44953-2024
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English versions: GB/T 44953-2024

English versions: GB/T 45344-2025

English versions: GB/T 45413-2025

GB/T 45610-2025_Chinese: Reclamation code of practice for coal gangue backfilling subsidence area (Chinese: 煤矸石回填塌陷区复垦技术规程)

English versions: GB 12664-2024

GB/T 31239-2023 Chinese PDF (GB/T31239-2023) GB/T 22389-2023 English versions: GB/T 44953-2024GB T 31239 2023_Chinese: Technical specification for fittings of 1 000 kV substation (Chinese: 1000kV) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 31239 2023

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