GB/T 5069-2024 Chinese PDF (GB/T5069-2024) GB/T 18216.7-2024 1-2024_Chinese: Optics and photonics -

1-2024_Chinese: Optics and photonics - Optical coatings - Part 1: Vocabulary (Chinese: 光学和光子学 光学薄膜 第1部分：术语)

GB/T 45426-2025_Chinese: Security and resilience - Emergency management - Guidelines for the use of social media in emergencies (Chinese: 安全与韧性 应急管理 社交媒体应对突发事件的应用指南)

6-2024_Chinese: Mechanical vibration - Evaluation of machine vibration by measurements on non-rotating parts - Part 6: Reciprocating machines with power ratings above 100 kW (Chinese: 机械振动 在非旋转部件上测量评价机器的振动 第6部分：功率大于100kW的往复式机器)

44-2024_Chinese: Requirements of the greenhouse gas emissions accounting and reporting - Part 44: Zinc smelting enterprise (Chinese: 温室气体排放核算与报告要求 第44部分：锌冶炼企业)

GB/T 5069-2024 Chinese PDF (GB/T5069-2024) GB/T 18216.7-2024 1-2024_Chinese: Optics and photonics -GB T 5069 2024_Chinese: Chemical analysis of magnesia alumina refractories (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 5069 2024