GB/T 25022.3-2023 Chinese PDF (GB/T25022.3-2023) GB/T 44965-2024 GB/T 20854-2025_Chinese: Corrosion of metals

GB/T 20854-2025_Chinese: Corrosion of metals and alloys - Accelerated testing involving cyclic exposure to salt mist

English versions: GB/T 31838

1-2025_Chinese: Non-traditional machines - Terminology - Part 1: Basic terminology (Chinese: 特种加工机床 术语 第1部分：基本术语)

GB/T 43298-2023_Chinese: General specification for vacuum drainage integrated equipment (Chinese: 真空排水集成设备通用技术条件)

English versions: GB/T 24478-2023

GB/T 25022.3-2023 Chinese PDF (GB/T25022.3-2023) GB/T 44965-2024 GB/T 20854-2025_Chinese: Corrosion of metalsGB T 25022. 3 2023_Chinese: Railway application Electrical connectors for rolling stock Part 3: Communication and control connectors (Chinese: 3) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 25022. 3 2023