As one of the standard accessories for the 50 series aluminum alloy sliding doors, it is fixed in the middle position of the left and right outer doors, with a comfortable grip and convenient force application. When in use, a small drill bit is first used to drill holes at the opening points, and then expansion screws are used to fix the opening points. Together with the inner handle, it serves as the overall sliding force point of the door. As the outer handle and external force point, it ensures the stability and convenience of door sliding, Facilitated the opening and closing of the door. The profile is individually molded with reserved locking holes for easy locking of the door body, ensuring warehouse safety.