1、Performance
Accuracy, flow rate, air permeability, differential pressure, filtration efficiency and other parameters are compared. After testing,imported glass fiber is far superior to domestic glass fiber.
2 、The price
Domestic glass fiber is about 70 RMB per kilogram, and imported fiberglass is about 300 RMB per kilogram.
3、 Structure
Imported glass fiber is pure fiberglass extraction, the texture is fragile, so a layer of tea oil paper is added inside and outside, so the color is a little yellow, the domestic glass fiber is artificially synthesized, relatively white.
4、Appearance
Imported glass fiber: It is made up of two layers of non-woven fabric and a layer of glass fiber. The layer is distinct. The thin layer is easy to break the water in the oil. The precision is generally 1-25 microns.
Domestic glass fiber: It is made up of two layers of non-woven fabric and three layers of glass fiber. The layer is not obvious. The thickness of the filter layer is not easy to break the water in the oil. The precision is generally between 1 and 100 microns.