Main engine cooling water system include thermoregulator , fresh water cooler , lub oil cooler , fresh water pump , sea water pump , fresh water tank ( also used as fresh water expansion tank ) 主机冷却水系统由调温器、淡水冷却器、滑油冷却器、淡水泵、海水泵、淡水箱（兼淡水膨胀箱）组成。
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Dega （ beijing ） plastic machinery co . , ltd is the subsidiary company of dega s . p . a . , which is an leader on the manufactruing of ancillary equipments for plastic processing industry : gravimetric and volumetric dosing unit , hopper feeders , granulator , hot air dryers , desiccant dryers , mould thermoregulators , mixers , cooling plants , automatic mould descaling system and conveyor belts 戴格(北京)塑料机械有限公司是意大利戴格公司在中国设立的独资子公司.意大利戴格在塑料加工辅助设备方面处于领先地位，产品包括：重量式及体积式定量加料装置，上料机，粉碎机，热风及除湿干燥机，模温机，混料机，冷水机，模具除垢器及传送带。
