A plastic contact material is disclosed for the treatment of a liquid, comprising a plurality of strips made of a plastic material and wherein {HEAD ~ each} of the strips has {TAIL ~ at least one tension element} 
has
A plastic contact material is disclosed for the treatment of a liquid , comprising a plurality of strips made of a plastic material and wherein { HEAD ~ each } of the strips has { TAIL ~ at least one tension element }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL