The shutdown of economies around the world due to the virus pandemic has affected Swedish sawmill companies to a lesser extent than the sawmill industry in other large forest countries.   Some products, especially tissue, packaging materials and wood products for the Swedish construction trade, have even had an increased demand. But the pandemic is also clear in the forest industry and the consequences are likely to be greater the longer it takes before global demand and production starts again.   ''The [Swedish] forest industry started the year strongly, but in March we see that ...