First quarter
SEK M 2011 2010
Net sales 69,956 56,459
Cost of sales (52,481) (43,579)
Gross income 17,475 12,880
     
   Gross margin, % 25.0 22.8
     
Research and development expenses (3,309) (3,004)
Selling expenses (5,706) (5,476)
Administrative expenses (1,715) (1,622)
Other operating income and expenses (395) 26
Income (loss) from investments in associated companies (19) (19)
Income (loss) from other investments 12 0
Operating income 6,343 2,785
     
   Operating margin, % 9.1 4.9
     
Operating income before depreciation and amortization (EBITDA) 9,001 5,567
   EBITDA margin, % 12.9 9.9