GB/T 311.14-2024 Chinese PDF (GB/T311.14-2024) GB/T 3543.8-2025 English versions: GB/T 21536-2024

English versions: GB/T 21536-2024

GB 45549-2025_Chinese: Norm of energy consumption per unit production of graphite and fluorite (Chinese: 石墨和萤石单位产品能源消耗限额)

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)

English versions: GB/T 29548-2024

English versions: GB/T 13355-2024

GB/T 311.14-2024 Chinese PDF (GB/T311.14-2024) GB/T 3543.8-2025 English versions: GB/T 21536-2024GB T 311. 14 2024_Chinese: Insulation co ordination Part 14: Insulation co ordination for AC DC filters of HVDC system (Chinese: 14AC DC) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 311. 14 2024