Aluminum window and door auxiliary machine including the bending machine, rolling machine,knurling machine etc. CNC Bending Machine BM20T is used for irregular aluminium profile, rectangular iron pipe bending,it is the decoration company, aluminium doors and window company bending arc of the machine. The machine adopts imported control unit, servo hydraulic station, AC servo drive system.Rolling machine has six sets of hardened rolling discs and rubber roller are electrically controlled for fast change of profiles.  The knurling machine LCJ-01 is used for broken bridge aluminium window processing.