Matters needing attention 

 1) installation be sure to install the personnel door check, allowing only installed in the well-balanced doors open machine, it may cause grave consequences. 2) door is running, no people or objects from below through the door, or below the door stay. 3) prohibited do not see remote control operation of the door operation, so as to avoid accident or incorrect opening the garage door. 4) levels on both sides of the door body requirements, standards of quality and safety standards, a great choice for customers to buy automatic doors.