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4-2025_Chinese: Safety of laser products - Part 4: Laser guards (Chinese: 激光产品的安全 第4部分：激光防护屏)
English versions: GB/T 45144-2024
GB/T 31274-2024_Chinese: Restricted substances management systems for electrical and electronic products - Requirements (Chinese: 电子电气产品限用物质管理体系 要求)
3-2024_Chinese: Pressure vessels - Part 3: Design (Chinese: 压力容器 第3部分：设计)
English versions: GB/T 23862-2024
GB/T 26521-2024 Chinese PDF (GB/T26521-2024) GB/T 21008-2023 4-2025_Chinese: Safety of laser productsGB T 26521 2024_Chinese: Nickel carbonate for industrial use (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 26521 2024
