Tepi kapena tepi yomangira ndi tepi yomwe imagwira ntchito movutikira yomwe imagwiritsidwa ntchito polongedza zinthu zingapo monga kutseka mabokosi a malata, zolimbikitsira, zomangira zinthu, zomatira pallet, ndi zina. Zimakhala ndi zomatira zomwe sizimamva kupanikizika zomwe zimakutidwa pazida zochirikiza zomwe nthawi zambiri zimakhala filimu ya polypropylene kapena poliyesitala ndi fiberglassfilaments zophatikizidwa kuti ziwonjezere mphamvu zolimba.Linapangidwa mu 1946 ndi Cyrus W. Bemmels, wasayansi wogwira ntchito kwa Johnson ndi Johnson.
Mitundu yosiyanasiyana ya tepi ya filament ilipo.Ena ali ndi mphamvu zokwana mapaundi 600 pa inchi imodzi ya m'lifupi.Mitundu yosiyanasiyana ndi zomatira ziliponso.
Nthawi zambiri, tepiyo ndi 12 mm (pafupifupi 1/2 inchi) mpaka 24 mm (pafupifupi 1 inchi) m'lifupi, koma imagwiritsidwanso ntchito m'lifupi zina.
Mitundu yosiyanasiyana yamphamvu, ma calipers, ndi zomatira zilipo.
Tepiyo imagwiritsidwa ntchito nthawi zambiri ngati kutseka kwa mabokosi a malata monga bokosi lathunthu, chikwatu chamagulu asanu, bokosi lathunthu la telescope.Ma tapi ooneka ngati "L" amayikidwa pamwamba pa chowongolera, chotalikira 50 - 75 mm (2 - 3 mainchesi) pamabokosi.
Katundu wolemera kapena wofooka womanga bokosi atha kuthandizidwanso ndi kugwiritsa ntchito mizere kapena magulu a tepi ya filament m'bokosi.