GB/T 3939.2-2023 Chinese PDF (GB/T3939.2-2023) GB/T 24498-2025 English versions: GB/T 40681

English versions: GB/T 40681

5-2024_Chinese: Proton exchange membrane fuel cell - Part 5: Test method for membrane electrode assembly (Chinese: 质子交换膜燃料电池 第5部分：膜电极测试方法)

sheets and strips for general engineering - Part 2: Mechanical properties (Chinese: 一般工业用铝及铝合金板、带材 第2部分：力学性能)

English versions: GB/T 17382-2023

English versions: GB/T 37400

GB/T 3939.2-2023 Chinese PDF (GB/T3939.2-2023) GB/T 24498-2025 English versions: GB/T 40681GB T 3939. 2 2023_Chinese: Nomenclature and signs of main fishing gear material Part 2: Netting (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 3939. 2 2023