... weighing 125kg-2000kg.it includes JKBK-D single-track,JKBK-LD single beam,JKBK-LS double-beam,JKBK-LSS telescopicbeam,JKBK ... manuallyoperated.it can atomatically ,semi-automatic operation,runing efficiently.JKBK-LD flexibel single girde suspension cranesingle girder overhead crane,single girder ...