http://www.phiko.kr/bbs/board.php?bo_table=z8_07&wr_id=141&sca=%EC%9D%B4%EB%B9%84%EC%97%A0%EB%A6%AC%EB%8D%94&sst=wr_datetime&sod=desc&sop=and&page=1
3.4 환경성적표지인증