GB/T 5169.49-2024 Chinese PDF (GB/T5169.49-2024) GB 21456-2024 GB/T 19544-2024_Chinese: Classification and general

GB/T 19544-2024_Chinese: Classification and general technology requirements of spinal orthoses (Chinese: 脊柱矫形器的分类及通用技术条件)

GB/T 45540-2025_Chinese: Greenhouse gas - Quantification method and requirements for carbon footprint of products - Man-made fibres (Chinese: 温室气体 产品碳足迹量化方法与要求 化学纤维)

GB/T 45597-2025_Chinese: Metallic materials - Residual stresses determination - Short-wavelength X-ray diffraction method (Chinese: 金属材料 残余应力测定 短波长X射线衍射法)

GB/T 45455-2025_Chinese: Tools for moulding - Guide bushes

GB/T 22330

GB/T 5169.49-2024 Chinese PDF (GB/T5169.49-2024) GB 21456-2024 GB/T 19544-2024_Chinese: Classification and generalGB T 5169. 49 2024_Chinese: Fire hazard testing for electric and electronic products Part 49: Arc test method Arc ignition test method for materials (Chinese: 49 ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 5169. 49 2024