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and the use of cast irons (Chinese: 石油天然气工业 油气开采中用于含硫化氢环境的材料 第2部分：抗开裂碳钢、低合金钢和铸铁)
GB/T 30489-2024_Chinese: Bodyside entrance systems for urban rail transit vehicle (Chinese: 城市轨道车辆客室侧门)
GB 15930-2024_Chinese: Fire dampers for building venting and smoke-venting system (Chinese: 建筑通风和排烟系统用防火阀门)
English versions: GB/T 1504-2024
7-2024_Chinese: Electrical safety in low voltage distribution systems up to 1000V a
GB/T 20907-2024 Chinese PDF (GB/T20907-2024) GB/T 32151.32-2024 and the use of castGB T 20907 2024_Chinese: Technical specification for automatic fare collection system of urban rail transit (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 20907 2024
