Cabirka Dhuumaha waxa lagu qeexay laba tiro oo aan cabbir ahayn:
Cabbirka Dhuumaha Magaca (NPS) ee dhexroorka ku salaysan inches.
Nambarka Jadwalka (SCH si loo qeexo dhumucda gidaarka tuubada.
Baaxadda iyo jadwalka labadaba waxaa looga baahan yahay si sax ah loo qeexo qayb gaar ah oo tuubo ah.
Cabbirka Dhuumaha Magaca (NPS) waa Waqooyiga Ameerika ee hadda jira ee cabbirrada caadiga ah ee tuubooyinka loo isticmaalo cadaadiska sare iyo kuwa hooseeya iyo heerkulka.Dood dheeraad ah oo arrintan ku saabsan waa halkan.
Cabbirka Dhuumaha Birta (IPS) wuxuu ahaa halbeeg ka horreeyay NPS si loo qeexo cabbirka.Cabbirku wuxuu ahaa qiyaastii dhexroorka tuubada gudaha injis.Tuubo kastaa waxay lahayd hal dhumuc, oo lagu magacaabo (STD) Standard ama (STD.WT.) Heerka Miisaanka.Waxaa jiray kaliya 3 dhumucyada gidaarka waqtiga.Bishii Maarso 1927, Ururka Heerarka Maraykanku waxa ay abuureen nidaam u qoondeeyey dhumucda gidaarka oo ku salaysan tillaabooyin yar yar oo u dhexeeya cabbirada oo soo bandhigay Cabbirka Dhuumaha Magaca ah kaas oo beddelay Cabbirka Beebka Birta.
Lambarka Jadwalka ee dhumucda gidaarka waxay u dhaxaysaa SCH 5, 5S, 10, 10S, 20, 30, 40, 40S, 60, 80, 80S, 100, 120, 140, 160, STD, XS (xoog dheeri ah) IYO XXS Xoog leh).
Shuruudaha Xiisaha ee Dhuumaha iyo Tuubooyinka
BPE - Dhuumaha Dhammaadka Madow
BTC - Dul Madow & Lammaanayaal
GPE - Dhamaadka Banaanka Galvanized
GTC – Xarig galvanized & Lamman
LUGAHA - Xadhkaha Hal Dhamaad
Dahaarka Tubooyinka & Dhammaadka:
Galvanized - Waxaa lagu daboolay dahaarka zinc-ka-ilaalinta ee birta si looga hortago walxaha inay daxaloobaan.Nidaamku wuxuu noqon karaa mid-kulul-galvanizing halkaasoo walxaha lagu geliyo zinc dhalaalid ah ama Electro-Galvanized halkaas oo xaashida birta ah ee tuubada laga sameeyay ay ahayd mid galvanized inta lagu jiro wax soo saarka falcelinta elektro-kiimikada.
Dahaar la'aan - Dhuumaha aan la daboolin
Dahaarka Madow - Lagu dahaadhay bir-oxide midab madow leh
Red Primed -Red Oxide Primed oo loo isticmaalo sida jaakad saldhig u ah biraha birta ah, waxay siisaa birta iyo dusha birta lakab difaac