... , gravel, mud…in many rivers, lakes, wharf…2. Featuressmall and exquisite, bigger flow, long-distance deliver,simple operation, detachable…3 ... steel wire of winch with hands →fixing the dredger and moving dredger left and right. 2)Effect of electric block:steel wire of ... electric block holds the submersible slurry pump up and down. 3 ...