GB/T 43299-2023 Chinese PDF (GB/T43299-2023) GB 17761-2024 31-2025_Chinese: National food safety standard

31-2025_Chinese: National food safety standard - Food contact materials and products - Determination of residual and migration of vinyl chloride

GB/T 28267

3-2025_Chinese: Information technology - Building information model(BIM) software - Part 3: Model view definition (Chinese: 信息技术 建筑信息模型（BIM）软件 第3部分：模型视图定义)

English versions: GB/T 28807

English versions: GB/T 44920-2024

GB/T 43299-2023 Chinese PDF (GB/T43299-2023) GB 17761-2024 31-2025_Chinese: National food safety standardGB T 43299 2023_Chinese: Test methods of electrical heating properties for glazing materials used in power driven vehicles (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 43299 2023