ZZcooler  company nsures the design, the services, and the manufacturing process quality via the well-functioned Quality Assurance System in every aspect. Our systems are certified by many standards including ISO9001, ISO14001, OHSAS18001, S8000, ANSI/ESD S20.20, QC080000, TS-16949, and etc.Furthermore, we are still improving this system by deploying statistical control and management.  ZZcooler  has deployed extensive statistical quality control tools in many internal or external processes.Every employee in  ZZcooler  has to go through mandatory statistical quality control trainings. During the product development phase, the CTQ (critical to quality) parameters are identified and tracked. The stability and capability of the processes are also monitored via corresponding indexes.