... (transparent) between state changes, the change of the glass to realize the permeability and protect the privacy of the dual requirements, use this characteristic, ... size: 980 * 2800, 1200 * 2800, 1800 * 3000 The thickness of the glass: 11 mm, 13 mm, 17 mm Glass color ... : colorless Adjustable optical glass USES and adapt to the range: 1. The high-grade office, conference room, negotiation room 2 ...