MIP

Non-metal building elements, namely, drilled and grouted pile foundations, uncased concrete piles, pre-fabricated non-metal support walls and retaining walls in soil, of binding agents or sealing suspensions and soil

Construction of civil engineering works; construction of vertical bore holes and vertical channels in soil and erecting of two-dimensional building elements for foundations, individual supports, uncased concrete piles, support walls and retaining walls of binding agents and soil, or of sealing suspensions and soil