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English versions: GB/T 30805-2024
GB/T 45155-2024_Chinese: Quality management - Guidance to understand
GB/T 45076-2024_Chinese: Specification for construction of recyclable resources trading platform (Chinese: 再生资源交易平台建设规范)
GB/T 30966
English versions: GB/T 31308
GB/T 34877.2-2023 Chinese PDF (GB/T34877.2-2023) GB/T 31904-2024 English versions: GB/T 30805-2024GB T 34877. 2 2023_Chinese: Industrial fans Determination of fan sound power levels under standardized laboratory conditions Part 2: Reverberant room method (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 34877. 2 2023
