... 3. Reusable. OUR FACTORY INTRODUCTION: Shanghai Yishun Ice Pack Co., Ltd. is a high-tech enterprise, devoting itself to the development and ... state of the art equipment. Our main products are biological ice bags, ice boxes, cold and hot packs, soft cold packs, ... hot packs, hand warmers, instant heaters, cold insulating agents, Ice King, blue ice, eye masks, fillet, masks, belts, insole, wine-covers, ...