Qhov sib txawv ntawm kev siv cov hlau Ductile Manhole Covers D400 thiab E600

D400 thiab E600 hlau ductile cov npog qhov dej txhua tus muaj lawv tus kheej qhov zoo thiab qhov tsis zoo. Qhov kev xaiv ntawm qhov twg zoo dua nyob ntawm qhov xwm txheej siv thiab cov kev xav tau tshwj xeeb.

Ua ntej, hais txog lub peev xwm ntawm kev nqa khoom, E600 Cover Manhole tuaj yeem tiv taus qhov hnyav txog li 60 tons, thaum lubD400 lub qhov dej npog muaj qhov siab tshaj plaws ntawm 40 tons. Yog li ntawd, E600 yog qhov tsim nyog dua rau cov chaw muaj tsheb coob xws li tshav dav hlau, chaw nres tsheb thauj khoom, thiab lwm qhov chaw uas xav tau kev thauj khoom hnyav.

Qhov thib ob, hais txog cov khoom siv, E600 manhole npog feem ntau siv cov khoom siv muaj zog dua, uas ua rau lawv ruaj khov dua thaum raug rau cov khoom thauj loj dua. Nyob rau hauv sib piv, txawm hais tias lub D400 Qhov Dej lub hau kuj tseem ruaj khov heev, nws lub zog tsis zoo me ntsis.

Thaum kawg, los ntawm qhov kev xav ntawm cov xwm txheej siv tau, D400 lub hau manhole yog qhov tsim nyog rau thaj chaw thauj khoom nruab nrab xws li txoj kev loj hauv nroog thiab txoj kev loj, thaum E600 yog qhov tsim nyog rau cov chaw thauj khoom siab heev xws li tshav dav hlau thiab chaw nres tsheb thauj khoom. Yog li ntawd, yog tias thaj chaw muaj tsheb ntau lossis xav tau kev thauj khoom hnyav, E600 yuav yog qhov kev xaiv zoo dua; Hauv thaj chaw tsheb tsawg lossis qhov chaw uas cov tsheb me me hla dhau, D400 txaus rau kev siv.