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GB/T 22452-2025_Chinese: General specification of non-linear optical borate crystal devices (Chinese: 硼酸盐非线性光学单晶元件通用规范)
GB/T 45234
GB/T 45521-2025_Chinese: Smart community infrastructures - Guidelines on data exchange and sharing for community infrastructures based on geographic information (Chinese: 智慧城市基础设施 基于地理信息的城市基础设施数据交换与共享指南)
English versions: GB 21257-2024
English versions: GB/T 3029-2025
GB/T 32270-2024 Chinese PDF (GB/T32270-2024) GB 45248-2025 GB/T 22452-2025_Chinese: General specification ofGB T 32270 2024_Chinese: Pressure piping code Power piping (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 32270 2024
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