Chongqing Fason Purification Equipment Co., Ltd was formerly known as an institute which was engaged in waste oil analysis at the beginning of 1990s. In 2007 the institute has officially changed its name to Chongqing Fason Purification Equipment Co., Ltd. In 2011, Fason has acquiredChongqing Shangsi Trading Co., Ltd. successfully. Up to now, we have obtained over 40 patents in oil purification field, and gained the national high-tech innovation invention awards for multiple times. Fason has already becom...