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1-2025_Chinese: Testing and calculating methods for seasonal performance factor of energy recovery ventilators for outdoor air handling - Part 1: Seasonal performance factor of sensible heating recovery (Chinese: 热回收新风机组季节性能系数测试和计算方法 第1部分：供热显热回收季节性能系数)
GB/T 16439-2024_Chinese: General specification for AC servo system (Chinese: 交流伺服系统通用技术规范)
and locating guide pillars
English versions: GB/T 20845-2024
impacts and risk assessment (Chinese: 适应气候变化 脆弱性、影响和风险评估指南)
GB/T 33383-2024 Chinese PDF (GB/T33383-2024) GB/T 45177-2024 1-2025_Chinese: Testing and calculating methodsGB T 33383 2024_Chinese: Corrosion control technology of modified polyvinyl chloride structural adhesive and cement (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 33383 2024
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