PVC drainage pipe is covered all around with suitable geotextile in order to prevent clogging of the holes placed for drainage purposes and to be more resistant to physical external factors. The geotextile to be applied here should have both high liquid permeability and high tensile strength. In PVC drainage pipes used for drainage purposes, it is applied in order to be more resistant to external impacts. In our factory, composite drainage pipes produced in our advanced technology production lines are produced in diameters of 50-80-100-125-160-200 mm and lengths between 50-200 metres.