GB/T 4137-2024 Chinese PDF (GB/T4137-2024) GB/T 3519-2023 English versions: GB/T 18385-2024

English versions: GB/T 18385-2024

English versions: GB/T 45158-2024

GB 30254-2024_Chinese: Minimum allowable values of energy efficiency and energy efficiency grades for cage three-phase high voltage induction motor (Chinese: 高压三相笼型异步电动机能效限定值及能效等级)

GB/T 18688-2023_Chinese: Agricultural irrigation equipment - Pressure losses in irrigation valves - Test method (Chinese: 农业灌溉设备 灌溉阀的压力损失 试验方法)

GB 19041-2024_Chinese: Safety specifications for the production of phosgene and phosgenation products (Chinese: 光气及光气化产品生产安全规范)

GB/T 4137-2024 Chinese PDF (GB/T4137-2024) GB/T 3519-2023 English versions: GB/T 18385-2024GB T 4137 2024_Chinese: Rare earth ferrosilicon alloy (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 4137 2024