Isikhwama sokuvala esinezinhlangothi ezintathu, okungukuthi, esivalwe ngezinhlangothi ezintathu, sishiya isikhala esisodwa kuphela somsebenzisi sokupakisha umkhiqizo. Izikhwama ze-zipper ezinezinhlangothi ezintathu ziyindlela evame kakhulu yokwenza izikhwama. Ukungabi nomoya kwesikhwama esivalwe ngezinhlangothi ezintathu yikona okungcono kakhulu, futhi isikhwama se-vacuum sivame ukwenziwa ngale ndlela. Isikhwama sepulasitiki esivalwe ngezinhlangothi ezintathu sinezakhiwo ezinhle zokuvimbela, ukumelana nomswakama kanye nokuvala okuhle. Singanyatheliswa futhi ngemibala kusukela kumbala owodwa kuya kweyishumi. Isikhwama se-zipper esinezinhlangothi ezintathu singasetshenziselwa ukudla, izidingo zansuku zonke, umkhiqizo we-elekthronikhi, amakhemikhali, njll.
1. Ifektri esesayithini esungule imishini yemishini ezenzakalelayo esezingeni eliphezulu, etholakala eDongguan, eShayina, enolwazi olungaphezu kweminyaka engama-20 ezindaweni zokupakisha.
2. Umhlinzeki wokukhiqiza onesethi eqondile, onokulawula okuhle kakhulu kochungechunge lokuhlinzeka futhi ongabizi kakhulu.
3. Isiqinisekiso sokulethwa ngesikhathi, umkhiqizo oqondile kanye nezidingo zamakhasimende.
4. Isitifiketi siphelele futhi singathunyelwa ukuze sihlolwe ukuze kuhlangatshezwane nezidingo zamakhasimende ezahlukene.
5. Kunikezwa amasampula wamahhala.
Umklamo womgodi olengayo, kulula ukuwulenga nokugcina kalula
Umugqa wokuvala, kulula ukuwuvula nokuvala ngokuphindaphindiwe
Umphumela omuhle wokuphrinta, amaphethini akhanyayo futhi acacile