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Pankhani ya zizindikiro zowonongeka kwambiri, yankho ndilofanana ndi lazinthu zosakwanira. Ndikofunikira kuyang'ana ngati kuthamanga kwa jekeseni kuli kochepa kwambiri, ngati nthawi yogwira ntchito ndi yokwanira, komanso ngati nthawi yozizira ndi yoyenera. Kusintha koyenera kwa magawowa kumatha kupititsa patsogolo kwambiri zinthu zomwe zamalizidwa.

Ngakhale sera yokhala ndi okosijeni ya polyethylene ndi sera ya polyethylene zimamveka zofanana, zimasiyana kwambiri pamapangidwe amankhwala ndi katundu. Mwachidule, sera ya polyethylene oxidized ndi chinthu chosinthidwa chomwe chimapezedwa ndi sera ya polyethylene oxidizing.

Ufa wa mphira wopangidwa ndi vulcanized umapangidwa ndikuphwanya mphira wa zinyalala kudzera munjira zamakina, njira zoziziritsa kukhosi ndi njira zina. Ndi zinthu za ufa zokhala ndi mphira zokhazikika ndipo zitha kugwiritsidwa ntchito m'makampani apulasitiki. Itha kusakanikirana mumtundu uliwonse m'mapulasitiki ndikusinthidwa kukhala ufa wa rabara kuti mulimbikitse mapulasitiki okhala ndi mapulasitiki ngati maziko. Polyvinyl chloride ndi imodzi mwa izo. Mu kupanga kwenikweni, polyvinyl kolorayidi toughened ndi kusinthidwa ndi vulcanized mphira ufa akhoza kukonzedwa mu mankhwala osiyanasiyana kudzera akamaumba, laminating, calendering, jekeseni akamaumba, extrusion, etc. Tayala mphira ufa ndi nitrile mphira ufa mu vulcanized mphira ufa ndi zambiri ntchito zipangizo PVC kusinthidwa.