About Qingzhou JuLong Dredging and Mining Machinery Co.,Ltd as one of the most professional manufacturers is focus on designing and engineering dredging and mining vessels and equipment with vast experience cades, provides optimal dredging solutions to clients worldwide, in turn , benefit them both in business profit and ecological effect.Hydraulic swing ladder cutter suction dredge.This type dredger is capable of performing high performance in narrow waterways ,can be handled with flexible way, it can be used in dredging sand ,clay gravel, mud and etc from the waterbed for waterway maintenance for passage ship safe .