GB/T 45321-2025 Chinese PDF (GB /T45321-2025) GB/T 45436-2025 English versions: GB/T 18760-2025

English versions: GB/T 18760-2025

English versions: GB/T 45205-2024

GB/T 45004-2024_Chinese: Evaluation guide for low-carbon enterprises in iron and steel industry (Chinese: 钢铁行业低碳企业评价指南)

1-2025_Chinese: Optics and photonics - Test methods for telescopic systems - Part 1: Basic characteristics (Chinese: 光学和光子学 望远镜系统试验方法 第1部分：基本特性)

English versions: GB/T 26925-2025

GB/T 45321-2025 Chinese PDF (GB /T45321-2025) GB/T 45436-2025 English versions: GB/T 18760-2025GB T 45321 2025_Chinese: Measuring method for electric and photometric parameters of filament light sources for 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 45321 2025