Superlift sectional garage door , made by unique patent and leaing technology. Quality is durable. No more worries on rust. Durable quality Theopeners adopts new c type steel galvanizedrail, chain drive; the door panels is injected even with high quality polyurethane foam under high voltage. These features keep our garagedoor quiet, in high strength, warm keeping, sound resistance etc. Leading technology Automaticdoor movement resistance curve check can ensure the safe and quiet movement, and adapt the resistance changes automaticallyfor a long time and neednt manual adjustment and maintenance. Automaticallytrack and check the resistance changes of the whole movement to make sure thehigh protection sensitivity and provide better security. Made according to every order
