??? ??????3(3?? 2??)-Al6061? ?????? ?? ????? ???

¡¤ http://www.riss.kr/search/detail/DetailView.do?p_mat_type=1a0202e37d52c72d&control_no=d1f77ec224490f4c
¡¤ https://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE02131253
¡¤ https://terms.naver.com/entry.nhn?docId=411641&cid=42327&categoryId=42327
¡¤ https://blog.naver.com/pscgnw/221654143707
¡¤ https://blog.naver.com/x0v0x/221245388275
¡¤ https://cafe.naver.com/forge1993/3786
¡¤ https://cafe.naver.com/metalhint/16315
¡¤ https://kin.naver.com/qna/detail.nhn?d1id=11&dirId=1114&docId=57648488&qb=7JWE6rKw7KCV66a96rOE&enc=utf8&section=kin.ext&rank=1&search_sort=0&spq=0
¡¤ https://terms.naver.com/entry.nhn?docId=506010&cid=42380&categoryId=42380
¡¤ https://blog.naver.com/noimma/222048218763
¡¤ http://www.edunet.net/nedu/contsvc/viewWkstCont.do?clss_id=CLSS0000000363&menu_id=82&contents_id=10bbd892-2bbb-4949-b937-73f22be76a51&svc_clss_id=CLSS0000018056&contents_openapi=naverdic
¡¤ https://blog.naver.com/astro90_/130139246956
¡¤ http://www.matweb.com/search/datasheet_print.aspx?matguid=1b8c06d0ca7c456694c7777d9e10be5b