大雪，是二十四节气中的第21个节气，也是冬季的第三个节气。大雪，斗指癸，太阳到达黄经255度，交节时间为每年公历12月6—8日。
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Beijing Hua Aixin Energy Saving Equipment Co., LTD. (Redwell) is committed to the field of heat exchange solutions, the products have been applied to HVAC, chemical, Marine, nuclear power, food, oil and other different working conditions, in the field of heat exchange occupies an important position.
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The importance of plate heat exchangers in the chemical industry
2019-03-26 16:17:08
Plate heat exchanger scale formation and measures