Hangzhou Zhengdian Technology Co.,Ltd is the leading manufacturer for rolling door motors, shutter motors, remote controls for rolling doors, sliding gate opener, swing gate opener, ups for rolling door motors, and RF remote and receivers. Our product featured as long lasting use and safety, and are easy to install and maintain. Our factory are located in Hangzhou city, nearby Shanghai and Ningbo port, With 5 automatic motor working lines, with a capacity of more than 20000sets each month, with other 15 professional technicians and more than 100 skilled workers. With annual output of more than 300,000sets .With a wide range, good quality, reasonable prices and stylish designs, our products are extensively used in garage and industrial,workshop,warehouse,shopping mall viallas, residential community and enterprise and so on. Our products are widely recognized and trusted by users and can meet continuously developing economic and social needs. our products have been sold to Southeast Asia,Middle East, South Africa,South America and so on. Welcome to make money with us together.