1.vacuum sewage suction 2.hydraulic contorl. 3.transport and dump the waste. 4.Hydraulic suction arm 4.OEM offered. This vacuum sewage truck is Suitable for suction,transportation and dumping soil and mud from various sewer man-hole,water wells and sediment.It is necessary tool for city sanitation department,waste processing company,big factory……,it can help to clean the sewer undergroud,clean ...