Founded in 1988, Chongqing Samhida Grinding Machine Co., Ltd was developed from a small abrasive belt grinding research laboratory in college of mechanical engineering in Chongqing University, which headed by Professor Huang Yun and a group of senior professional researchers. Then it was reformed to grinding wheel subordinate company in Chongqing Samhida Power-generating Technical Development Company in 1995, and formally founded Chongqing Samhida Grinding Machine Co., Ltd, which as a subordinat