19 Building materials (non-metallic); mats and materials for matting for building use; mats, material for matting, devices and equipment for retaining surface soil; mats, material for matting, devices and equipment for trapping sediment; mats and materials for matting for use in civil engineering; non-metallic matting for use in soil erosion control and in the establishment of vegetation; woven non-metallic geotextile matting for vegetative reinforcement and soil stabilization; parts and fittings for the aforesaid goods