Of course, led display has passed the QC test. It is a necessary section among the manufacturing processes for it greatly increases the pass rate of the product. Atop is a professional manufacturer with years of experience in quality control. We have absorbed the most advanced quality assurance methods from the industry and have purchased testing devices to measure the product dimension and test its functions. Through these measures, the defective products are removed from the product line effectively, thus product quality is firmly assured.
