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English versions: GB/T 4167-2024
GB 31825-2024_Chinese: Norm of energy consumption per unit production of pulp and paper (Chinese: 制浆造纸单位产品能源消耗限额)
1-2024_Chinese: Industrial systems
GB/T 20657-2022_Chinese: Petroleum and natural gas industries - Formulae and calculations for the properties of casing
GB 15740-2024_Chinese: Protective device against unauthorized use of motor vehicles (Chinese: 汽车防盗装置)
GB/T 20790-2024 Chinese PDF (GB/T20790-2024) GB/T 18639-2023 English versions: GB/T 4167-2024GB T 20790 2024_Chinese: Head feed combine harvester Technical requirements (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 20790 2024
