Previous attempts at switchable glassfaced commercialization problems such as being too expensive, or having a yellowish tint that was unsuitable for cars or clear viewing.
Subsidiaries of Nippon Sheet Glass and others have also faced unrest.
日本板硝子株式会社和其他公司的子公司都面临着同样的问题。
3
The south elevation is faced with brick, concrete and a zigzagging band of glass that houses a fire stair. The other facades have a more rectilinear appearance.