On September 10, 2015, Shenzhen Zhanggonghe Precision Hardware Co., Ltd. comprehensively carried out the quality "five inspections" activity. "Five inspections" are defined as: first inspection, self inspection, patrol inspection, full inspection and supervision inspection. From the general manager down to every employee, they should fulfill their own quality responsibilities. The main purpose of this activity is to enhance employees' quality awareness, participate in quality control and establish a quality culture.