China water-source（ground- GB Standards Search Result

and Chinese version GB Standards, you can purchase directly in the web page; After receive your payment, we will send the GB Standards PDF file to your Email within 1~3 days.
2. Other English version GB Standards are not ready translated, only after get your order, then we translate them, time usually need 3-5 days .


	GB 30721-2014 Minimum allowable values of the energy efficiency and energy efficiency grades for water-source（ground-source）heat pumps 水(地)源热泵机组能效限定值及能效等级 - 英文版
	GB/T 19409-2013 water-source（ground-source） heat pumps 水（地）源热泵机组 - 英文版

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