Shandong Joysource thepa ea ka tlung khong., LTD ke litsebi khampani ka karolo efe ea ho etsa thepa, thekiso, ka mor'a-thekiso tšebeletso. Ka mor'a lilemo tse ho hōla, khampani ya rona e se e mong oa matla ka ho fetisisa le bokgoni ba khampani thepa ea ka tlung fektheri China.
Joysource lehong indasteri e na le thepa ea ka tlung Korean, thepa ea ka tlung European, boenjiniere le thepa ea ka tlung le ho dihlopha tse ling tsa lihlahisoa tsa lapeng, ho akarelletsa le LED likhabote TV, likhabote lehlakoreng; Oteropo, likhabote le tse ling tse romeloa linaheng tse ling ho Europe, United States, Bochabela bo Hare le ba bang, ho feta linaha tse ling tse 30 le libaka tse.