First quarter
SEK M 2012 2011
Net sales 77,034 69,956
Cost of sales (59,414) (52,810)
Gross income 17,620 17,146
     
   Gross margin, % 22.9 24.5
     
Research and development expenses (3,708) (3,309)
Selling expenses (6,489) (5,982)
Administrative expenses (1,232) (1,118)
Other operating income and expenses (292) (395)
Income (loss) from investments in associated companies 8 (19)
Income from other investments 0 12
Operating income 5,906 6,335
     
   Operating margin, % 7.7 9.1
     
Operating income before depreciation and amortization (EBITDA) 8,717 8,993
   EBITDA margin, % 11.3 12.9