Habka wax soo saarka tuubooyinka birta aan xuduud lahayn
1. Waa maxay hababka aasaasiga ah ee loo soo saaro tuubooyinka birta ah ee aan kala go 'lahayn?
① Diyaarinta madhan ② Kuleylka madhan ee tuubada ③ Dalool ④ Duubista tuubada ⑤ Cabbirka iyo yaraynta dhexroorka ⑥ Dhammaystirka, kormeerka iyo baakadaynta kaydinta.
2. Waa maxay cutubyada wax soo saarka ee tuubooyinka birta ah ee aan lahayn siligga kulul?
Rogidda joogtada ah, rogista isdhaafka ah
Sidee loo kala saaraa tuubooyinka birta ah iyadoo loo eegayo isticmaalkooda?
Tuubada gudbinta (GB/T 8163): Tuubada gudbinta saliidda iyo gaaska dabiiciga ah, walxaha matalaya waa birta No. 20, birta daawaha Q345, iwm.
Tuubbo qaab-dhismeed (GB/T 8162): Agabka matalaya waxaa ka mid ah birta kaarboonka, birta No. 20, iyo birta No. 45; birta daawaha Q345, 20Cr,
40Cr, 20CrMo, 30-35CrMo, 42CrMo, iwm.
Waqtigan xaadirka ah, tuubooyinka birta ah ee aan kala go 'lahayn waxaa inta badan loo isticmaalaa tuubooyinka saliidda, tuubooyinka kuleyliyaha, beddelayaasha kulaylka, tuubooyinka sita iyo qaar ka mid ah dhuumaha gaadiidka cadaadiska sare leh.
Maxay yihiin arrimaha saameeya qiimaha tuubooyinka birta ah?
Habka gaadiidka, miisaanka aragtiyeed/miisaanka dhabta ah, baakadaha, taariikhda keenista, habka lacag bixinta, qiimaha suuqa, tignoolajiyada farsamaynta, yaraanta badeecadaha ee suuqa, macaamiisha hore/macaamiil cusub, miisaanka macaamiisha, khibradda isgaarsiinta, ilaalinta deegaanka, siyaasadaha qaranka, baahida suuqa, Agabka, sumadda, kormeerka, tayada, shahaadada, siyaasadda warshadda birta, heerka sarrifka, shuruudaha rarista, xaaladda caalamiga ah