GB/T 16649.2-2024 Chinese PDF (GB/T16649.2-2024) GB/T 45410.1-2025 GB/T 45331-2025_Chinese: ePTFE membrane for

GB/T 45331-2025_Chinese: ePTFE membrane for reinforcement of proton exchange membrane (Chinese: 质子交换膜增强用聚四氟乙烯膜)

7-2024_Chinese: Proton exchange membrane fuel cells - Part 7: Test method of carbon paper properties (Chinese: 质子交换膜燃料电池 第7部分：炭纸特性测试方法)

GB/T 20882

10-2025_Chinese: Refractory mortars - Part 10: Determination of permanent change in dimensions on heating (Chinese: 耐火泥浆 第10部分：加热永久线变化试验方法)

GB/T 45280-2025_Chinese: Artificial intelligence - Unified interfaces for heterogeneous artificial intelligence accelerating units (Chinese: 人工智能 异构人工智能加速器统一接口)

GB/T 16649.2-2024 Chinese PDF (GB/T16649.2-2024) GB/T 45410.1-2025 GB/T 45331-2025_Chinese: ePTFE membrane forGB T 16649. 2 2024_Chinese: Identification cards Integrated circuit cards Part 2: Cards with contacts Dimensions and location of the contacts (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 16649. 2 2024