No. 3 PU madzi zipper ali ndi ubwino wambiri.Choyamba, ndi yaying'ono kwambiri komanso yabwino, yosavuta kunyamula ndikugwiritsa ntchito, makamaka yoyenera kuyika ndi kuyika zinthu zina zazing'ono.Kachiwiri, ili ndi ntchito yabwino kwambiri yosindikiza madzi, yomwe ingateteze bwino kulowetsedwa kwa zinthu zakunja monga madzi ndi dothi, ndikuteteza mkati mwa chinthucho kuti zisawonongeke.Kuonjezera apo, zipper za 3 PU zopanda madzi zimakhala zofewa kwambiri ndipo sizidzayambitsa kupanikizika kapena kuwononga zinthu, zomwe zimapangitsa kuti wogwiritsa ntchito azikhala womasuka.Chofunika kwambiri, zipi zamadzi za PU zitha kugwiritsidwa ntchito kwa nthawi yayitali popanda kulephera, ndipo zimakhala zolimba komanso zokhazikika.Ndi chida cholimbikitsidwa kwambiri cha zipper.
No. 3 PU zopangira madzi zopanda madzi zimakhala ndi phindu lalikulu kuposa zipi zachikhalidwe, zomwe zimawapangitsa kukhala otchuka komanso ogwiritsidwa ntchito kwambiri m'madera osiyanasiyana.Ubwino wina waukulu ndi kuthekera kwawo kopanda madzi.Mosiyana ndi zipi zina, ma zipper osalowa madzi a PU amatha kusunga madzi, kuteteza kuwonongeka kwa madzi pazinthu zomwe zili mkati.Izi zimawapangitsa kukhala abwino kuti azigwiritsidwa ntchito pamasewera amadzi ndi ntchito zakunja komwe kumakhala konyowa kumakhala kofala.Kuonjezera apo, No. 3 PU zippers zopanda madzi zimadziwikanso chifukwa cha kupirira kwawo kwapamwamba, kutanthauza kuti akhoza kupirira mikhalidwe yovuta.Kukhazikika kumeneku kumawapangitsa kukhala osankhidwa bwino pazovala zakunja monga zosambira ndi masuti osambira, chifukwa amatha kupirira kukhudzana ndi madzi amchere ndi klorini pakapita nthawi.Kupatulapo ntchito zawo muzovala zakunja, zipi za PU zopanda madzi zimagwiritsidwanso ntchito posindikiza zinthu zosiyanasiyana, kuphatikiza zikwama zonyamulira foni yam'manja, zosungira panja, ndi matumba okonzekera.Mwa kusunga chinyezi, dothi, ndi zinthu zina zakunja, zimatsimikizira chitetezo ndi chitetezo cha zinthu zomwe zili mkati.Izi zimawapangitsa kukhala chisankho chabwino kwa anthu omwe akufuna kusunga zinthu zawo zamtengo wapatali pamene ali paulendo. Komanso, No. 3 PU zipper zotchinga madzi zimatha kugwiritsidwanso ntchito pazinthu zosiyanasiyana zamasewera akunja monga zikwama, zikwama zoyendayenda, ndi mahema.Powagwiritsa ntchito pazinthu izi, opanga amatha kupereka chitetezo chabwino komanso kumasuka kwa anthu omwe ali panja.Mwachitsanzo, oyendayenda amatha kudalira zipi zamadzi za PU kuti zisunge zida zawo zowuma mkati mwa matumba awo ngakhale pamene akuyenda mumvula kapena mvula. kupirira mikhalidwe yovuta.Amapereka magwiridwe antchito abwino kwambiri osalowa madzi komanso kulimba komwe kumawapangitsa kukhala okonda masewera am'madzi, zochitika zakunja, komanso kugwiritsa ntchito tsiku ndi tsiku.Zotsatira zake, zipi izi zatchuka kwambiri ndipo zimagwiritsidwa ntchito kwambiri m'magawo osiyanasiyana.