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English versions: GB/T 30889-2024
2-2025_Chinese: Plastics - Impact-resistant polystyrene (PS-I)moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties (Chinese: 塑料 抗冲击聚苯乙烯（PS-I）模塑和挤出材料 第2部分：试样制备和性能测定)
2-2025_Chinese: Digital fitting systems - Performance evaluation protocol - Part 2: Virtual garment representation (Chinese: 数字化试衣 系统性能评估 第2部分：虚拟服装表示)
GB/T 13815
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 45489-2025 Chinese PDF (GB /T45489-2025) GB/T 45322.1-2025 English versions: GB/T 30889-2024GB T 45489 2025_Chinese: General technical specification of the track panel for medium and low speed maglev (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45489 2025
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