Swedish Krona(SEK) is 瑞典 克朗
Swedish Krona is Translated into "瑞典克朗" in Chinese Word by China Official and Banks.
"克朗" is "Krona" in Transliteration.
Reference by Bank of China: http://www.boc.cn/sourcedb/whpj/

Chinese People Call it "瑞典克朗".

Sweden is Translated into "瑞典" by China Official.