Qalabka bilaabista iftiinka
Beam Launcher, oo sidoo kale loo yaqaan bridge girder launcher, waa qayb muhiim ah oo qalab dhismaha ah oo loogu talagalay dejinta hufnaanta leh ee boodhka betoonka ee horay loo sameeyay inta lagu jiro mashaariicda dhismaha boodhka. Waxay fududeysaa habka dhismaha span-by-span, iyadoo la maamulayo noocyada kala duwan ee girder sida U-beams, T-beams, iyo I-beams. Iyadoo la isku daro hawlaha kor u qaadista, gaadiidka, iyo goobta, qalabka soo saarka iftiinka ayaa fududeynaya geedi socodka dhismaha buuraha, iyagoo hubinaya xasilloonida, hufnaanta, iyo amniga la xoojiyay.
Buuxi foomka hoose si aad si degdeg ah u hesho buugga cranes-ka oo la hadlo kooxdeena farsamada si aad u hesho talooyin