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English versions: GB/T 1610-2024
2-2024_Chinese: Fire shutter assembly - Part 2: Motor for fire shutter assembly (Chinese: 防火卷帘 第2部分：防火卷帘用卷门机)
GB 14866-2023_Chinese: General technical specification for eye and face protector (Chinese: 眼面防护具通用技术规范)
307-2025_Chinese: National food safety standard - Determination of formaldehyde in foods (Chinese: 食品安全国家标准 食品中甲醛的测定)
GB/T 45198-2024_Chinese: General requirements for valuation and evaluation of used vehicles (Chinese: 老旧汽车估值评价规范)
GB/T 28511.2-2023 Chinese PDF (GB/T28511.2-2023) GB/T 45264-2025 English versions: GB/T 1610-2024GB T 28511. 2 2023_Chinese: Integrated optical path devices based on planar lightwave circuit Part 2: Dense wavelength division multiplexing(DWDM) filter based on arrayed waveguide grating(AWG) technology (Chinese: 2AWGDWDM) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 28511. 2 2023
