GB 19272-2024 Chinese PDF GB 28050-2025 GB 45549-2025_Chinese: Norm of energy

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)

40-2024_Chinese: Specifications for optical fibre test methods - Part 40: Measurement methods and test procedures for transmission characteristics - Attenuation (Chinese: 光纤试验方法规范 第40部分：传输特性的测量方法和试验程序 衰减)

English versions: GB/T 17216-2025

GB 45187-2024_Chinese: Fall protection - Climb auto system against fall (Chinese: 坠落防护 动力升降防坠落装置)

GB 17918-2025_Chinese: Safety specification for dust explosion protection in bulk grain loading and unloading system in port (Chinese: 港口散粮装卸系统粉尘防爆安全规范)

GB 19272-2024 Chinese PDF GB 28050-2025 GB 45549-2025_Chinese: Norm of energyGB 19272 2024_Chinese: Safety for outdoor body building equipment General requirements (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB 19272 2024