Umnyango okhawulezayo, owaziwa ngokuba ngumnyango okhawulezayo, umnyango okhawulezayo wePvc, uhlala usetyenziswa kwizityalo ezicocekileyo zemizi-mveliso kunye nokusebenza ngokufanelekileyo, ezifanelekileyo ukungena rhoqo kunye nokuphuma kunye nokucoca kwangaphakathi. izixhobo zombane, iindibano zocweyo ezicocekileyo, iindibano zocweyo zokucoca, imidiza, ushicilelo, amalaphu, iivenkile ezinkulu, njl.njl.