GB/T 15651.5-2024 Chinese PDF (GB/T15651.5-2024) GB/T 45319-2025 1-2024_Chinese: Hydraulic fluid power -

1-2024_Chinese: Hydraulic fluid power - Test code for determination of noise level - Part 1: Hydraulic pumps (Chinese: 液压传动 噪声测定规范 第1部分：液压泵)

1 encoding rules - Part 1: Specification of Basic Encoding Rules(BER)

GB/T 45447-2025_Chinese: Revert materials for cast superalloy (Chinese: 再生铸造高温合金原料)

English versions: GB/T 17818-2025

GB/T 33492-2024_Chinese: Management specification of second-hand goods exchange market (Chinese: 二手货交易市场经营管理规范)

GB/T 15651.5-2024 Chinese PDF (GB/T15651.5-2024) GB/T 45319-2025 1-2024_Chinese: Hydraulic fluid power -GB T 15651. 5 2024_Chinese: Semiconductor devices Part 5 5: Optoelectronic devices Photocouplers (Chinese: 5 5 ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 15651. 5 2024