Classification Standard For Ductile Iron Manhole Npog

Txawm hais tias muaj ntau hom manhole npog,ductile hlau manhole npogtau siv dav. Qhov no kuj qhia txog kev paub txog lub manhole npog muaj nuj nqi ntawm cov hlau ductile. Txhawm rau ua kom tau raws li qhov xav tau ntawm kev siv sib txawv, cov ntaub qhwv hlau manhole npog kuj tau muab faib ua ntau hom, ntau hom sib txawv tsis nyob rau hauv siab. Cia peb saib cov txheej txheem kev faib tawm ntawm nodular cam khwb cia hlau manhole npog.

Green Spaces, taug kev, txoj kev tsheb kauj vab lossis kev taug kev uas tsis tso cai rau lub teeb tsheb, txoj kev lossis chaw nres tsheb rau cov tsheb zoo tib yam thiab hauv qab no, lossis txoj kev lossis chaw nres tsheb rau cov tsheb hnyav, yog siv los npog txoj kev hauv tsev lossis qhov tob tob rau kev tiv thaiv cov neeg taug kev ntog. los yog khoom. Feem ntau muab faib ua round ductile hlau manhole npog thiab square ductile hlau manhole npog.

Hauv kev tswj hwm hauv nroog, feem ntau yog puag ncig, vim hais tias puag ncig manhole npog tsis yooj yim rau qaij, uas tuaj yeem tiv thaiv cov neeg taug kev thiab tsheb zoo dua. Kev siv lub voj voog yog ua raws li qhov tseeb tias txhua qhov puag ncig manhole npog muaj tib txoj kab uas hla thiab ntev los ntawm nws qhov chaw, yog li yog tias lub hau npog tau khaws los ntawm cov tsheb hla, nws yuav yog me ntsis dav dua li lub manhole hauv qab lawm. , thiab lub manhole npog yuav tsis poob rau hauv lub manhole.

Nodular cam khwb cia hlau manhole npog tau muab faib ua rau qib raws li cov kabmob muaj peev xwm

Theem 1: (Cov hom qis yog A15): txoj siv ntsuab, kev taug kev thiab lwm qhov chaw uas txwv tsis pub tsav tsheb.

Qib 2: (qis hom B125): txoj kev taug kev, tsis yog lub tsheb, chaw nres tsheb thiab chaw nres tsheb hauv av.

Qib 3: (hom qis yog C250) : thaj chaw nyob, rov qab txoj kev thiab txoj kab, thaj chaw uas tsuas yog lub teeb tsheb lossis tsheb tsav, nyob rau hauv 0.5m ntawm curbs ntawm ob sab ntawm txoj kev.

Qib 4: (D400 hom yog xaiv rau qib qis): txoj kev hauv nroog, txoj kev loj, txoj kev loj thiab lwm qhov chaw.

Qib 5: (qis E600 hom): chaw nres tsheb thauj khoom, wharf, tshav dav hlau thiab lwm qhov chaw.

Cov saum toj no yog cov txheej txheem kev faib tawm ntawm cov hlau nplaum manhole npog, Kuv vam tias yuav pab koj. Yog tias koj xav paub ntau ntxiv, thov hu rau peb kom muaj tswv yim.