Choi Ung Su AHN BYENG GIL Kwon Oh Kwan 전용진 2024-01-13T19:33:04Z 2024-01-13T19:33:04Z 2021-09-29 https://pubs.kist.re.kr/handle/201004/110622 English Tribological Properties antiwear additives four-ball sear tester Tribological behavior of some antiwear additives in vegetable oils Conference 2 World Tribology Congress, pp.120 World Tribology Congress 120 120 KO