How to identify the pros and cons of Pleated fiberglass window screen?

　　The pleated fiberglass window screen is made of glass as raw material and processed by various molding methods in the molten state. Generally divided into continuous glass fibers and discontinuous glass fibers. On the market, more continuous glass fibers are used. There are mainly two kinds of continuous pleated fiberglass window screens produced according to the current standards in my country.

　　One is alkali glass fiber in Pleated fiberglass window screen, codenamed C; the other is alkali-free glass fiber, codenamed E. The main difference between them is the content of alkali metal oxides. Medium alkali glass fiber is (12±0.5)%, and alkali-free glass fiber is <0.5%. There is also a pleated fiberglass window screen on the market as a non-standard product. Commonly known as high alkali glass fiber. Its alkali metal oxide content is above 14%. The raw material for production is broken flat glass or glass bottles. This kind of glass fiber has poor water resistance, low mechanical strength and low electrical insulation, and is not allowed to produce products according to national regulations.

　　Generally, the qualified medium-alkali and alkali-free Pleated fiberglass window screen products must be tightly wound on the bobbin. Each bobbin is marked with the number, strand number and grade, and the product inspection verification should be carried out in the packaging box. Product inspection verification includes:

　　1.The name of the manufacturer; 2. The code and grade of the product; 3. The serial number of this standard; 4. The special seal for quality inspection is stamped; 5. The net weight; Grade, standard number, net weight, production date and batch number, etc.