Having high quality and R&D lab in the industry, our quality department covers multiple inspection points suchas incoming materials checking.routing inspection, QA, pre-aging and post-aging inspection, finishingproduct inspection and a complete quality management system with restricted control of upper andlower processes.Our fans passed the environment simulation test, frequency, waterproof test,Power-on test, anti-rust salt test, high voltage test,7"24 hours continuous aging test and so on.