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Iwuli yokuvala izwakale enekhwalithi enhle ukuze isetshenziswe embonini
Uvolo wokuvala uphawu usetshenziselwa ukuvala imifantu eyimishini futhi wenziwa ngama-gaskets avalayo, amashidi namabhulokhi ngemuva kokubhoboza.Uvolo ozwakalayo osetshenzisiwe nawo uhlukaniswe ngekhwalithi nokuqina okuhlukene, futhi izinto ezizwakalayo zoboya ezihlukene zidinga ukukhethwa ngokuya ngokusetshenziswa okuhlukile.
Izinga lokufakwa kwemikhiqizo efana namaphedi azwakalayo enziwe ngoboya obuvaliwe anomuzwa obalulekile ekusebenzeni kwawo kokuvala kanye nempilo yesevisi.Ngesikhathi sokuhlanganiswa, indawo yokuxhumana kufanele ihlanzwe futhi isulwe, futhi ingaphezulu lephedi elizwayo kufanele lihlanganiswe ngamafutha okugcoba ngesikhathi somhlangano.
