Apple's design is novel, we also have the same design as the Apple ideal. This product combines electric retractable door industry and designed a new technology product.This product is to use money matter squat door as a classification, manual and electric dual-purpose. Suitable for indoor and outdoor use, simple installation, flexible operation. From the intermediary factors reflecting ring. With the requirements of customers I squat length and height and color. Are government agencies, industrial and mining enterprises, institutions of choice for products.