Changzhou Jisi Cold Chain Technology Co.,Ltd,is a factory specializing in the production of series of pcm ice packs,cooler boxes and VIP panels. Our phase change material ice plate with several kinds of temperatures,such as -30 degrees -25 degrees -15 degrees -10 degrees -5 degrees 0 degrees 2-8 degrees 18 degrees 23 degrees, these can meet the refrigerated transportation needs of ice cream, food, vaccines and drugs. The core material of our cooler box is made of PU or VPU panels. With its low heat conductivity and PCM ice plate,the duration can be last for 12hours,24hours,48hours,72hours,96hours,even 120hours.