Doris has passed ISO-9001 on 2008 and strictly follow the its standard during production.

Doris puts its quanlity in the first place so that quality control is very important for the whole company. The quality control team consist of 20employees. Every one of whom are stictly trained to control products of all categories.

Doris also has strict rules for quality control and training course are arranged for every new staff and special training every month for employee in quality control team and production line.