https://www.vacuumelevators.com/home/elevator
赞助Residential Elevators By PVE Is The Sole Manufacturer of Elevators Powered By Air! 1 -- 3 Passengers / Wheelchair Accessible Model
No Pre-Construction Shaft · ASME A17.7 Certified · Self- Supporting Elevator · Free Quotes
Models: PVE 30, PVE 37, PVE 52