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GB/T 45342-2025_Chinese: Vitreous and porcelain enamels - Inside and outside enamelled valves and pressure pipe fittings for untreated and potable water supply - Requirements and testing (Chinese: 搪瓷制品和瓷釉 未处理饮用水供应系统用内外表面搪瓷的阀门和压力管配件 要求和试验方法)
2-2024_Chinese: Safety requirements for electrical equipment for measurement
GB/T 45457
GB/T 21667-2024_Chinese: General rules of the second-hand goods qualification (Chinese: 二手货品质鉴定通则)
English versions: GB/T 45060-2024
GB/T 45562-2025 Chinese PDF (GB /T45562-2025) GB/T 45284.4-2025 GB/T 45342-2025_Chinese: Vitreous and porcelainGB T 45562 2025_Chinese: Heavy mechanical Design specifications for automation system (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45562 2025
