... refining plant 1,reasonable price 2,practical machine 3,high oil yield 4,environmental JZ ... layer, roller , moto , gas seperate , depositing tank , cooling pool , cooling pipes , oil tank , water seal , furnace , desulfrization deduster ... , cooling tower and water pump when you use our cooling pool . The fact is our cooling pool ... about or not about the machine willwelcome . welcome to our factory .