DHL water-tube hot water boiler has been compared with DZL water-fire tube hot water boiler on the sides of operating performance and economy.
并从使用性能、经济性等方面与DHL型水管热水锅炉和DZL型水火管热水锅炉进行了比较。
DHL water-tube hot water boiler has been compared with DZL water-fire tube hot water boiler on the sides of operating performance and economy.
并从使用性能、经济性等方面与DHL型水管热水锅炉和DZL型水火管热水锅炉进行了比较。
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