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GB/T 19494.1-2023 Chinese PDF (GB/T19494.1-2023) GB/T 22453-2025 GB/T 20850-2025_Chinese: Safety of machinery

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GB/T 20850-2025_Chinese: Safety of machinery - Guidelines for the application of machinery safety standards (Chinese: 机械安全 机械安全标准应用指南)

English versions: GB/T 45498

GB/T 45402-2025_Chinese: Smart city - City intelligent center - Reference architecture (Chinese: 智慧城市 城市智能中枢 参考架构)

English versions: GB/T 45301-2025

English versions: GB/T 20834-2024

GB/T 19494.1-2023 Chinese PDF (GB/T19494.1-2023) GB/T 22453-2025 GB/T 20850-2025_Chinese: Safety of machineryGB T 19494. 1 2023_Chinese: Mechanical sampling of coal Part 1: Method for sampling (Chinese: 1) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 19494. 1 2023

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