GB 44504-2024 Chinese PDF GB/T 28185-2025 GB/T 20850-2025_Chinese: Safety of machinery

GB/T 20850-2025_Chinese: Safety of machinery - Guidelines for the application of machinery safety standards (Chinese: 机械安全 机械安全标准应用指南)

English versions: GB/T 22283-2025

English versions: GB/T 45154-2024

GB/T 45092-2024_Chinese: Testing and evaluation of electrodes performance for hydrogen production by water electrolysis (Chinese: 电解水制氢用电极性能测试与评价)

scientific and medical equipment - Radio-frequency disturbance characteristics - Limits and methods of measurement (Chinese: 工业、科学和医疗设备 射频骚扰特性 限值和测量方法)

GB 44504-2024 Chinese PDF GB/T 28185-2025 GB/T 20850-2025_Chinese: Safety of machineryGB 44504 2024_Chinese: Risk classification and service life of special production equipment for civil explosive materials (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB 44504 2024