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GB/T 45131-2025 Chinese PDF (GB /T45131-2025) GB 20943-2025 GB/T 29456-2025_Chinese: Energy management systems
GB/T 45131-2025 Chinese PDF (GB /T45131-2025) GB 20943-2025 GB/T 29456-2025_Chinese: Energy management systems
$669.50
Description
GB/T 29456-2025_Chinese: Energy management systems - Guidance for the implementation
GB 20943-2025_Chinese: Minimum allowable values of energy efficiency and energy efficiency grades for AC-DC and AC-AC power supplies (Chinese: 交流-直流和交流-交流电源能效限定值及能效等级)
English versions: GB/T 17216-2025
English versions: GB 32047-2025
GB/T 22452-2025_Chinese: General specification of non-linear optical borate crystal devices (Chinese: 硼酸盐非线性光学单晶元件通用规范)
GB/T 45131-2025 Chinese PDF (GB /T45131-2025) GB 20943-2025 GB/T 29456-2025_Chinese: Energy management systemsGB T 45131 2025_Chinese: Analysis of water used in boiler and cooling system Determination of phosphate, chloride, silicate, total alkalinity, phenolphthalein alkalinity, hardness and iron Spectrophotometric detection by discrete analysis systems (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45131 2025
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