This study focus on the development of new molding ways of the cultured marble washbasin & bathtub to produce higher quality goods. On looking back upon the past 30 years in the market of the washbasin & bathtub, our product quality level was below the standard and the production facility was largely imported goods. And the inferior quality leads to the unsatisfaction of customer. But the leading companies are have been concentrated their effort on the productivity and quality improvement. In this study, we introduced the success case of "BACHE" which gained productivity improvement by developing the molding process.