Dhuumaha birta sita sax sare
Hordhac
Dhuumaha birta qaada waxa loola jeedaa tuubo bir ah oo aan xidhnayn oo kuleyl leh ama qabow-duuban (qabow sawiran) oo loogu talagalay samaynta siddooyinka duuban ee caadiga ah. Dhexroorka dibadda ee tuubada birta waa 25-180 mm, dhumucdiisuna waa 3.5-20 mm. Waxaa jira laba nooc oo saxnaanta caadiga ah iyo saxnaanta sare. Birta wax lagu dhejiyo waa birta loo isticmaalo samaynta kubbadaha, rollers iyo giraanta xadhkaha. Gawaarida waxaa lagu soo rogaa cadaadis weyn iyo khilaaf inta lagu jiro shaqada, sidaas darteed birta xajinta ayaa looga baahan yahay inay yeelato qallafsanaan sare oo isku mid ah oo xirto caabbinta, iyo sidoo kale xaddidaad sare. Shuruudaha isku midka ah ee isku-dhafka kiimikada ee birta xajinta, nuxurka iyo qaybinta kuwa aan birta ahayn, iyo qaybinta carbides waa mid aad u adag. Waa mid ka mid ah darajooyinka birta ugu adag ee dhammaan wax soo saarka birta.
Halbeegga
| Shayga | Dhuumaha birta ah ee sidata |
| Heerka | ASTM, DIN, ISO, EN, JIS, GB, iwm. |
| Qalab
|
Q215 Q235 Marka loo eego GB/T700;Q345 Marka loo eego GB/T1591 Fasalka B, Fasalka C, Fasalka D, Fasalka 50 S185,S235JR,S235JO,E335,S355JR,S355J2 SS330, SS400, SPFC590 iwm. |
| Cabbirka
|
Dhumucda gidaarka: 3.5mm--20mm, ama sida loo baahdo. Dhexroorka dibadda: 25mm-180mm, ama sida loo baahdo. Dhererka: 1m-12m, ama sida loo baahdo. |
| Dusha sare | Saliid khafiif ah, galvanized dip kulul, electro-galvanized, madow, qaawan, varnish daahan/saliid ka-hortagga miridhku, daahan ilaalinta, iwm. |
| Codsiga
|
Tuubooyinka kululeeyaha, tuubooyinka dareeraha, tuubooyinka hawo-qaadida, tuubooyinka qoyaanka, tuubooyinka qaab dhismeedka, mishiinada iyo tuubooyinka baabuurta, iwm. |
| U Dhoofinta
|
America, Australia, Brazil, Canada, Peru, Iran, Italy, India, United Kingdom, Arab, iwm. |
| Xidhmada | Xidhmada dhoofinta caadiga ah, ama sida loo baahdo. |
| Waqtiga qiimaha | EXW, FOB, CIF, CFR, CNF, iwm. |
| Lacag bixinta | T/T, L/C, Western Union, iwm. |
| Shahaadooyinka | ISO, SGS, BV. |
Bandhiga Alaabta
