This hydraulic floor spring is installed under the ground to automatically control the opening and closing of doors.
It allows bidirectional opening, with adjustable closing and latching speed.
It can hold the door open at 90 degrees and provides stable support for heavy doors.
Widely used in offices, hotels, shopping malls, hospitals and public places.
库存 10000 件
库存 10000 件
库存 90 件
库存 10000 件
库存 10000 件
库存 10000 件
