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English versions: GB/T 45057-2024
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)
301-2025_Chinese: National food safety standard - Determination of osmotic pressure in foods (Chinese: 食品安全国家标准 食品中渗透压的测定)
GB 19083-2023_Chinese: Protective face mask for medical use (Chinese: 医用防护口罩)
GB/T 1311-2024 Chinese PDF (GB/T1311-2024) GB 5842-2023 English versions: GB/T 45057-2024GB T 1311 2024_Chinese: Test methods for direct current machines (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 1311 2024
