Wiishashka buundada korantada ee leh saxanadaha korantada ee la guuri karo waxay si gaar ah ugu habboon yihiin rarista culus iyo dejinta iyo maaraynta alaabada iyo alaabada birta birta ah ee magnetic (sida birta birta ah, birta qaybta, birta doofaarka) ee taako go'an gudaha gudaha ama hawada furan ee dhirta birta.Waxa kale oo si caadi ah loo isticmaalaa warshadaha iyo bakhaarada si loogu raro agabka sida birta, birta, birta, birta qashinka, waraaqaha birta iyo wixii la mid ah.
Magaca badeecada:Bridge Crane leh koronto laadlaadsan
Awoodda: 5+5t,10+10t,16+16t
Baaxadda: 10.5m-31.5m
Dhererka kor u qaadista 6-30m
Fasalka shaqada waa A6,A7
Qaabka kantaroolka: kantaroolka qolalka, koontaroolka fogaanta, kontoroolka xariiqa goglan.