Hollow shutter glass is a product which installs aluminum blinds into tempered insulated glass, through magnetic control, the blinds in the insulated glass can raise and lower, tilt nearly 180 degrees on level.
https://www.fmblinds.com/Custom-Hollow-Shutter-Glass.html
No.4235, 4th Floor, Hardware Market, 9 Baixue Road, Mocheng Street