2. Pipeline dredging construction: municipal pipeline dredging, sewage pipeline dredging, industrial pipeline dredging, rainwater pipeline dredging, sewer pipeline dredging, drainage pipeline dredging, sewage pipeline dredging, pipeline cleaning, etc.
3. Construction of box culvert dredging: special machinery supporting facilities, box culvert dredging, culvert dredging, open box culvert dredging, square culvert dredging, silt dredging, fish pond dredging, etc.
4. Ditch dredging construction: ditch dredging, sewage ditch dredging, ditch dredging, square ditch dredging, open channel dredging, culvert dredging, reservoir dredging, fish pond dredging, underwater dredging, channel dredging, etc.
5. Sewage pool suction cleaning construction: patent sewage suction vehicle suction cleaning municipal pipeline, sludge collection pool, sewage treatment pool, lifting pump house and pipeline manhole.
6. Contracted sewage pipe network maintenance: undertake long-term contracted cleaning, dredging and maintenance of municipal road drainage pipelines, cities, streets, drainage pipelines, industrial areas, living quarters, restaurants, factories, office buildings, hospitals, schools and other pipelines.
7. Tank car pumping: pumping water, pumping mud and transporting sewage for the bridge on site.