... and hemetic,in the narrow space,the door is open in folding mode,so the narrow entrance will be ... ,which is close to the effect of sliding door,folding door will not ask for storage space,in limited ... ~+50°Configuration:double unit system driveraluminium alloy door+tempered glasssuitable for various sensorsContact informationCIndyTel:13011228771 automatic folding door,folding door,glass folding door