Detailed Product Description We have series of products:total heat core,sensible heat core.For total heat :high performance paper,counterflow, ABS frame instructure, ... 230,750*450,120*200.For sensible heat:alinminium foil core,coated with epoxy,crossflow,the dimmensions are 150*150, ... 400,450*450,500*500.For sensible heat:alinminium foil core,coated with epoxy,counterflow,the dimmensions are 140*420, ...