GB/T 43305-2023 Chinese PDF (GB/T43305-2023) GB 31830-2024 storage pumps and pump-turbines -

storage pumps and pump-turbines - Ultrasonic transit-time method (Chinese: 水轮机、蓄能泵和水泵水轮机流量的测量 超声传播时间法)

GB/T 6148-2025_Chinese: Test method for temperature-resistance coefficient of precision resistance alloys (Chinese: 精密电阻合金电阻温度系数测试方法)

GB/T 21397-2023_Chinese: Cotton harvesters (Chinese: 棉花收获机)

GB/T 45179-2024_Chinese: Man-made fibre - Determination of friction factors of staple fibres - Capstan method (Chinese: 化学纤维 短纤维摩擦因数的测定 绞盘法)

GB/T 43305-2023 Chinese PDF (GB/T43305-2023) GB 31830-2024 storage pumps and pump-turbines -GB T 43305 2023_Chinese: Practices for compatibility tests of waste chemicals (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 43305 2023