aluminium window-door corner Automatic crimping machine Adopt original installation import flat square guide rail, which can guarantee the precision of the heads when moves horizontally. Transmission adopts the original imported installation ball bearing master screw. The precision is extremely high so it can guarantee group angle quality. The servo controlling machines, servo motor, person-machine touching the contact surface are adopt the original imported installation of Japanese Mitsubishi system, and the increase assistance brake system. It is stable and efficiency.