Zhejiang Blue Sea Mechanical & Electronical Co., Ltd is one of the leading suppliers for developing and manufacturing garage door openers, industrial door openers and sliding door openers. We have more than 100 high-class equipments, e. G, injection molding machine, quick working punch, integrated tester, gear hobbing machine, experimental equipments and so on. Through five-year development and 600 000 sets experience, we have developed abrasion resistant tin bronze gear motor, automatic recovery switch transformer and force tracing circuit board. We offer more than 10 different styles of opener models. In the way of rail, you can choose belt drive, chain drive, steel or aluminum, three parts or one part. Our openers have passed CE in 2007.