Beijing Roloo Cold-chain technology is a high-tech manufacturer found in Oct 2002. It is the chinese leading manufacturer specialized in research&production cold chain refrigerant material. based on phase change material refrigerant research and production for temperature control within bio-pharmaceutical & life sciences cold chain applications. Various types of packs use innovative technology phase change materials. Such as PCM refrigerant pack/bottle, gel refrigerant, foam refrigerant brick. PCR cooler, Defferent design satisfied customer different requirement.