China used transparent glass as a window during the Yongzheng period of the Qing Dynasty.

1, imported from Guangzhou 13 line when importing foreign trade goods. At that time, due to the limitation of traffic conditions, only princes and princes could afford it.

2. With the passage of time, in the late Qing Dynasty, with the rise of the Westernization Movement, China officially began to produce glass. At this time, the glass manufacturing industry officially took root in China, and glass windows were officially produced at this time.