... . Panel control,hot key control7. infrared control8. welded curtain with good anti-tearing, good welding quality, high welding ... the convenience of operation. Technical Parameters:Machine :Ultrasonic Curtain Fold Welding MachineModel No.:HJJMax fabric width :2.5 ... roller shades/vertical shades,blinds/verticalblinds/roller blinds, Roman blinds,Shangrila blinds,valance,drapery,awning,table runner,eye ...