GB/T 9869.1-2025 Chinese PDF (GB /T9869.1-2025) GB 25596-2025 GB/T 45637-2025_Chinese: Electrically operated toothbrushes

GB/T 45637-2025_Chinese: Electrically operated toothbrushes - Methods for measuring the performance (Chinese: 电动牙刷 性能测试方法)

GB/T 32865-2025_Chinese: Quality requirements and test methods for tight sandstone gas products (Chinese: 致密砂岩气产品质量要求和试验方法)

GB/T 45159

GB/T 45615-2025_Chinese: Systems and software engineering - Methods and tools for model-based systems and software engineering (Chinese: 系统与软件工程 基于模型的系统与软件工程方法和工具)

GB 16281-2024_Chinese: Fire emergency receiving and dispatching system (Chinese: 消防接处警系统)

GB/T 9869.1-2025 Chinese PDF (GB /T9869.1-2025) GB 25596-2025 GB/T 45637-2025_Chinese: Electrically operated toothbrushesGB T 9869. 1 2025_Chinese: Rubber Measurement of vulcanization characteristics using curemeters Part 1: Introduction (Chinese: 1: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 9869. 1 2025