Lafarge Agregate Betoane, a Romanian limestone quarry, said on Monday it swung to 34.8 billion old lei ($1.21m) net loss in the first half of 2005, from a net profit of 12.06 billion in the same period last year, as turnover fell.  The loss was due to temporary setbacks, which should be overcome by the end of the year, the company said in a statement.  The company boosted its net profit last year to 46.62 billion old lei, from 2.6 billion lei in 2003.