GB/T 18639-2023 Chinese PDF (GB/T18639-2023) GB/T 45258-2025 GB 30367-2025_Chinese: Dentistry - Ceramic

GB 30367-2025_Chinese: Dentistry - Ceramic materials (Chinese: 牙科学 陶瓷材料)

English versions: GB/T 45029-2024

GB/T 45257-2025_Chinese: Press and publication - Knowledge services - Extraction and marking up of knowledge element (Chinese: 新闻出版 知识服务 知识元提取与标引)

GB/T 32612-2025_Chinese: Textiles - Determination of ethylene glycol ethers and related ester compounds (Chinese: 纺织品 乙二醇醚类及相关酯类化合物的测定)

GB/T 18639-2023 Chinese PDF (GB/T18639-2023) GB/T 45258-2025 GB 30367-2025_Chinese: Dentistry - CeramicGB T 18639 2023_Chinese: Diagnostic techniques for rabies (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 18639 2023