GB/T 24966-2023 Chinese PDF (GB/T24966-2023) GB/T 33290.22-2024 GBZ45378-2025_Chinese: Non-destructive testing - Methods

GBZ45378-2025_Chinese: Non-destructive testing - Methods for absolute calibration of acoustic emission transducers by the reciprocity technique (Chinese: 无损检测 基于互易性技术的声发射传感器绝对校准方法)

GB/T 20424-2025_Chinese: The specification for limit on harmful element content of the heavy nonferrous metal concentrates products (Chinese: 重有色金属精矿产品中有害元素的限量规范)

GB/T 45628-2025_Chinese: Artificial intelligence - Knowledge graph - Knowledge exchange protocol (Chinese: 人工智能 知识图谱 知识交换协议)

English versions: GB/T 5132

English versions: GB/T 13305-2024

GB/T 24966-2023 Chinese PDF (GB/T24966-2023) GB/T 33290.22-2024 GBZ45378-2025_Chinese: Non-destructive testing - MethodsGB T 24966 2023_Chinese: Grating vehicle detector (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 24966 2023