Inquiry (采购产品): oil cooler plate heat exchangers or oil coolres Please provide the provide the working principles of this plate & frame type oil coolers & also please provide the difference of shell & tube type versus plate & frame type oil coolers. Application for power generation company Thanking you **** Hidden Message ***** sharath chandra 301401 Company: Reliance energy ltd E-mail: sharath1977@gmail.com **** Hidden Message ***** sharath1977@gmail.com