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The float glass production process begins with the melting of raw materials, including silica sand, soda ash, and limestone, at high temperatures. This molten mixture is then floated on top of molten tin, allowing the glass to spread evenly and form a continuous sheet. As the glass moves through the annealing lehr—a controlled cooling chamber—it gradually solidifies and is cut into standardized sheet sizes.

Under the rapid growth of the economy, China has been the big country to use the building curtain wall, and people are gradually improving the demand for building curtain wall, but because the use of early building curtain wall has reached most of the service years, various problems will occur, causing the use of curtain wall to have security hidden trouble.