Dongfeng 6m3 high pressure cleaning Suction sewage 1.4m3 sewage tanker and 2 water tanker 2.dongfeng chassis Dongfeng 6m3 high pressure cleaning Suction sewage Sewage suction truck -Special-made tanker with material of manganese steel. It’s mainly used for the pumping, transporting and draining of sludge and waste oil in sewers,catch basin,sewer man-hole,septic tanks and sediments of sludge pool ...