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English versions: GB/T 44919-2024
GB/T 15972
GB/T 15316-2024_Chinese: General principles for energy saving monitoring and testing techniques (Chinese: 节能监测技术通则)
GB/T 45159
5-2025_Chinese: Uncut finished spectacle lenses - Part 5: Abrasion-resistant of surfaces test methods (Chinese: 眼镜镜片 第5部分：表面耐磨试验方法)
GB/T 45227-2025 Chinese PDF (GB /T45227-2025) GB/T 31114-2024 English versions: GB/T 44919-2024GB T 45227 2025_Chinese: Technical requirements for closed off management system of chemical industry park (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45227 2025
US$ 24.00
US$ 24.00
US$ 24.00
