Continuous endeavour to produce qualified product of Sun Safes made another progress in Sun Safes history. Jun, 2004 , Underwriter's Laboratory (UL) witnessed fire test of 4 drawer filing cabinet of sunsafes and approved Class 350-1hour fire resistant certification. Mr.Baek, senier staff of Sun Safes Q.C.Dept just have reviewed sample before the test begins Filing cabinet was taken out from the furnice after the test All the paper inside the drawer has been kept safe.