权威例句
Folding door
Folding door
Folding door
Frost control system for high-speed horizontal folding doors
Double acting spring hinge for folding doors
Folding door for garages
Folding door pivot pin retainers
Acoustic type folding door with separate cover sections
DOOR LEAF GUIDING ASSEMBLY OF A STACKING SYSTEM FOR LATERALLY FOLDING DOORS
Trolley for a sliding or folding door
Bi-folding doors for air distribution plenum
Folding door for office cubicle
Thrust recovery outflow valve with a single bi-fold door and method of controlling aircraft cabin pressure
