色一情一区二区三区四区_一级做一级爱a做片性视频视频 _操美女在线观看_翁熄系列乱电影

The U-shaped glass with toughened glaze has good lighting and energy saving, and the shading effect is improved obviously, and the shading coefficient is increased by 20%.

It can be widely used in airport, station, gymnasium, office building, hotel, residence, greenhouse and other industrial and civil buildings.

The inorganic glaze is evenly printed / sprayed on the U-shaped glass web, and the screen printing / spraying can be customized according to the needs, and the drying is usually carried out continuously after the glaze application.

Through drying and heat treatment, the glaze is permanently sintered on the glass surface to obtain a kind of wear-resistant, acid and alkali resistant decorative U-shaped glass product;