GB/Z 44946-2024 Chinese PDF (GB /Z44946-2024) GB/T 21290-2025 YY/T 0866-2024_Chinese: Total inward leakage(TIL)

YY/T 0866-2024_Chinese: Total inward leakage(TIL) determination method of protective face mask for medical use (Chinese: 医用防护口罩总泄漏率测试方法)

GB/T 32507-2024_Chinese: Power quality - Terminology (Chinese: 电能质量 术语)

GB/T 30844

GB/T 33993-2024_Chinese: Two dimensional code for commodity (Chinese: 商品二维码)

English versions: GB/T 44997-2024

GB/Z 44946-2024 Chinese PDF (GB /Z44946-2024) GB/T 21290-2025 YY/T 0866-2024_Chinese: Total inward leakage(TIL)GBZ44946 2024_Chinese: Hydraulic fluid power Filter element test methods Service life evaluation (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GBZ44946 2024