Electric retractable door, retractable door Taiyuan, strong Sheng door industry by Wanbailin district-Sheng distribution of stainless steel products. Wanbailin district-Sheng Stainless Steel Products Distribution Division (www.sxqsmy.net) is a leader in Taiyuan, metal door, over the years, the company is implementing scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . Sheng door industry in a strong leadership with the staff warmly welcome all inquiries negotiations to create strong Sheng door industry a better future. Retractable door Symptom Cause Remedy: 1. Automatic doors can open and close without power checks power 2. remote control without electricity or damage to repair, replace the remote control 3. The clutch did not close the clutch with a special key to close the four automatic door opening and closing limit switch when not automatically limit bad repair work, replacement limit switch 5. Power thread reverse swap power cord 6. Automatic doors in one direction does not automatically limit the adverse overhaul limit switches work, replace limit switches. Automatic retractable door dimensions: now common in the market and did not have upper and lower limits of the standard retractable stainless steel doors on the size, but generally retractable door (track) is probably the longest at about 40M, about the width of the narrowest stretch 40CM of anti-theft door, but this door is rarely seen in the market retractable door, because it is the early production of Taiyuan retractable door manufacturers, it's wind resistance and appearance are less than ideal. 1.9M highest since too much wind force is dropped, too short not beautiful up. And your supplementary question should be asked door gauge it, and now many manufacturers are mostly between 50-110CM's.