Geotextile 150 * 0.5 * 150 on behalf of what

Geotextile 150 * 0.5 * 150 on behalf of what

This is the composite geomembrane specifications are two cloth a film, 150 grams of geotextile is 0.5MM in the middle of the film, the following is 150 grams of geotextile, compound into