1.qingdao dredger 2.SGS 3.cutter suction dredger,cutter head dredger,sand dredger 4.Testing center for product ex-factory 1.qingdao dredger in China OEM ServiceApplicability this machine: To pass low bridge easily, the controlling room and rest room are dismountable. Connecting parts for cabin room and deck are easily dismounted joints,.Construction: it consists of three pontoons: one main ...