1. Amakhreyithi okuzalela iihagu asetyenziswa kwiimazi ngexesha lokukhulelwa.Yehlisa izinga lokuphunza ngothintelo olufanelekileyo lwendawo yokuhamba kwaye yenza kube lula kwaye isebenze ngokufanelekileyo ukondla.
2. Amakhreyithi okumitha kwehagu anika indawo ekhuselekileyo nekhululekileyo yeemazi zokuzala nokuzala.Okunye okubalulekileyo kukuphucula izinga lokuphila kwamantshontsho eehagu.Ngaxeshanye, ikhreyithi yokuzala inefuthe elikhulu ekuncanciseni nasekufumaneni amandla emazi.3. Ngapha koko, amakhreyithi okuzalela anika indawo epholileyo yeemazi kunye nendawo efudumeleyo yamantshontsho ehagu.Ikhreyiti yehagu ehlanganisiweyo yeBMC ikwazi ukugcina iihagu zomile kwaye zigula.
4.Ikhreyithi yokufuya ithatha umbhobho wegalvanized oshushu, nobukhulu obuyi-2.5mm, obufikelela umgangatho wehlabathi.Iqela elinye libandakanya iziqwenga ezili-11, kwaye zanele ukusetyenziswa kwe-5 okanye i-10 yeemazi.Umkhombe wokuhlwayela kunye nokusela phambi kwesikhewu.