Custom 45 # kulul duuban oo aan tol lahayn dhexroor weyn birta tuubada dareeraha wareejinta dhuumaha injineernimada derbi qaro weyn tuubo bir ah

Sharaxaad Gaaban:

Tuubada birta ah ee aan xidhnayn ayaa laga daloolinayaa birta wareegta oo dhan, mana jirto tuubo bir ah oo alxan oo korka saaran.Sida ku cad habka wax soo saarka, tuubooyinka birta ah ee aan fiicnayn waxaa loo qaybin karaa tuubooyinka birta ah ee kulul, tuubooyinka birta ah ee qabow, tuubooyinka birta ee qabow ee jiidaya, tuujinta tuubooyinka birta ah, iyo tuubooyinka sare.

Marka loo eego qaabka qaybta, tuubooyinka birta ah ee aan xidhnayn ayaa loo qaybiyaa laba nooc: wareegsan iyo shisheeye.Tuubooyinka shisheeyaha waxaa ka mid ah labajibbaaran, oval, saddex xagal, laba geesood ah, iniinaha qaraha, xiddigiska, iyo tuubooyinka baalasha.