GB/T 21551.4-2024 Chinese PDF (GB /T21551.4-2024) GB/T 14478-2025 English versions: GB/T 20840

English versions: GB/T 20840

English versions: GB/T 22285-2025

GB/T 22474-2025_Chinese: General quality for fruit and vegetable

English versions: GB/T 18375-2024

GB/T 21638-2025_Chinese: Microbeam analysis - Guidelines for electron beam microanalysis of defects in steel materials (Chinese: 微束分析 钢铁材料缺陷电子束显微分析方法通则)

GB/T 21551.4-2024 Chinese PDF (GB /T21551.4-2024) GB/T 14478-2025 English versions: GB/T 20840GB T 21551. 4 2024_Chinese: Antimicrobial and cleaning function of household and similar electrical appliances Part 4: Particular requirements for refrigerator (Chinese: 4) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 21551. 4 2024