Ubungqingqwa obuqhelekileyo bokudubula{0}}iiphaneli zobungqina akuloxabiso limiselweyo; iyahluka ngokuxhomekeke kwisicelo, imathiriyeli, kunye neemfuno zolawulo ezifanelekileyo.
Kwicandelo lolwakhiwo, ifayibha eqhelekileyo-ugqabhuko-dubulo lwesamente-iiphaneli zobungqina zikholisa ukuba nobukhulu obuyi-6-20 mm. Kwiindonga zeplanti yemizi-mveliso jikelele kunye nophahla, iiphaneli ezingqindilili eziyi-8-12 mm zihlala zisetyenziswa, zibonelela ngenqanaba elithile lokhuseleko kumaza othusayo ogqabhuko-dubulo kunye nokuququzelela ukufakwa. Ukusetyenziswa kwiindawo ezineemfuno eziphezulu zokumelana nokudubula, njengendawo yokugcina iimbumbulu kunye neendibano zocweyo zemichiza, iiphaneli ezishinyeneyo eziyi-15-20 mm zinokukhethelwa ukhuseleko olongeziweyo.
Ugqabhuko lwentsimbi-iiphaneli ezingqina ukuqhuma, okufana neephaneli ze-aluminiyam, zikholisa ukuba nobukhulu be-1-5 mm. Ukudubula okuncinci{5} kwezindlu zezixhobo ezinobungqina obunokudubula kunokusebenzisa i-1-2 mm iiphaneli ezingqindilili, ngelixa izakhiwo ezinkulu ezinobungqina bokudubula zisenokufuna iiphaneli ze-aluminiyam eziyi-3-5 mm ubukhulu.
Amazwe ahlukeneyo kunye nemimandla inokuba nemigangatho kunye neenkcukacha zayo. Xa ukhetha ubungqingqwa obufanelekileyo bokudubula{1}kweephaneli zobungqina bogqabhuko-dubulo, kuyafuneka ukuba ubhekisele kwimigangatho efanelekileyo ngokusekwe kwiimfuno zoyilo lweprojekthi ethile, inqanaba lengozi yoqhushumbo, kunye nezinye izinto.
