This product is made of aluminum alloy and stainless steel composition have chemical resistance, oil, anti-aging, anti-corrosion, no rust. Easy to install, strong structure, light weight, strong sealing characteristics. According to customer demand and actual site installation baffle height. Deng transport facilities Ltd. Shanghai is still below a set of product development, production and sales of specialized integrated transport companies. The company is mainly engaged in road planning and design of municipal transportation, community buildings, factories, parking lots (garages), landscaping and other works of transport facilities and supporting product development, production sales, installation and maintenance services. Each Garage retaining plate registration transport facilities Ltd. Shanghai is still equipped to install the required four expansion nail. Confirmation Method flap length of data: Shanghai Shang Deng transport facilities Ltd. Garage garage flap length is determined by the width of the door according to customers' specific use, the next single custom client requirements on both sides of the wall width of the door, you need data accurate, error ± 2mm. Flaps presentation: column height and bezel highly consistent, usually 500mm [according to customer requirements 400mm, 450mm or 600mm]; intermediate baffle thickness of about 3.5Cm, garage garage door flap length based on the use of specific width decision! [Contact Us] Company Name: Shanghai Shang Deng transport facilities Ltd. Contact: Manager Mobile: 15001992357; Phone: 021-67897626 Fax: 021-67896673 company's official website: http://www.shsdjt.com Company Address: Shanghai Songjiang Silver Road District No. 350