Umahluko ekusetyenzisweni kweeDuctile Iron Manhole Covers D400 kunye ne-E600

Isinyithi esithambileyo se-D400 kunye ne-E600 izigqubuthelo zemingxuma nganye inezibonelelo zayo kunye neengxaki zayo. Ukukhetha ukuba yeyiphi engcono kuxhomekeke kwimeko ethile yokusetyenziswa kunye neemfuno.

Okokuqala, ngokubhekiselele kumthamo wokuthwala, i-E600 Isigqubuthelo somngxuma inokumelana nobunzima obufikelela kwiitoni ezingama-60, ngelixaIsiciko somngxuma we-D400 inomthwalo ophezulu weetoni ezingama-40. Ke ngoko, i-E600 ifanelekile ngakumbi kwiindawo ezinezithuthi ezininzi ezifana nezikhululo zeenqwelo-moya, izikhululo zemithwalo, kunye nezinye iindawo ezifuna ukumelana nemithwalo enzima.

Okwesibini, ngokwezinto ezisetyenziswayo, izigqubuthelo zemingxuma ye-E600 zihlala zisebenzisa izinto ezinamandla aphezulu, nto leyo ezenza ziqine ngakumbi xa zithwalwa yimithwalo emikhulu. Ngokwahlukileyo koko, nangona Umngxuma we-D400 Isigqubuthelo sikwaqinile, amandla aso aphantsi kancinci.

Okokugqibela, ngokwembono yeemeko ezifanelekileyo, i-D400 isigqubuthelo somngxuma ifanelekile kwiindawo ezinomthwalo ophakathi njengeendlela eziphambili zasezidolophini kunye neendlela ezinkulu, ngelixa i-E600 ifanelekile kwiindawo ezinomthwalo ophakamileyo kakhulu njengezikhululo zeenqwelo-moya kunye nezikhululo zemithwalo. Ke ngoko, ukuba indawo inezithuthi ezininzi okanye kufuneka imelane nemithwalo enzima, i-E600 inokuba lolona khetho lungcono; Kwiindawo ezinomthwalo omncinci okanye kwiindawo apho kudlula khona izithuthi ezilula, i-D400 yanele ukusetyenziswa.