1、InsulationThat is, the application of filament geotextile to have different chemical properties (particle size, dispersion, mortar consistency and relative density, etc.) of the construction of raw materials (such as sand and sand grains, sand and gravel, sand and soil mix, etc.) to carry out

Quality filament geotextiles grasp the following three points:1, look at the defects. Knitted polyester fabric appearance defects more, serious defects will affect the effect of wearing. Such as leaky needle hole, lack of silk, hook silk, broken head, silk pulling tight and serious weft slanting,