GB/T 31961-2024 Chinese PDF (GB/T31961-2024) GB/T 18936-2025 GB/T 45537-2025_Chinese: Requirements of use

GB/T 45537-2025_Chinese: Requirements of use and test methods for snow-making machines in ski area (Chinese: 滑雪场造雪机使用要求及检验方法)

GB/T 45634-2025_Chinese: Technical specifications for the prevention and control of arthropod-transmitted infectious diseases at entry-exit points (Chinese: 进境出境经虫媒传播传染病防控技术规范)

GB 25972-2024_Chinese: Gas fire extinguishing systems and components (Chinese: 气体灭火系统及部件)

GBZ45463-2025_Chinese: Method for porosity measurement of thermally sprayed coatings (Chinese: 热喷涂涂层孔隙率的测定)

GB/T 31961-2024 Chinese PDF (GB/T31961-2024) GB/T 18936-2025 GB/T 45537-2025_Chinese: Requirements of useGB T 31961 2024_Chinese: Truck and bus rims (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 31961 2024