Construction and repair services, namely lifting and levelling of sunken concrete and asphalt structures of any kind; filling of tanks, tunnels and voids of any kind, namely earthworks or concrete construction, and cementing services for oil and gas wells; soil stabilization services namely the injection of products into soil to consolidate or pack the soil; soil stabilization services, namely, laying frameworks or tie-rods to consolidate the soil

Water filtration and purification apparatus