Open AccessDevelopment of the PFA Lining Bottom Drain Ball Valve
Author(s) -
김봉석
Publication year - 2016
Publication title -
han'gug gi'gye gi'sul haghoeji/han-guk gigye gisul hakoeji
Language(s) - English
Resource type - Journals
eISSN - 2092-0385
pISSN - 1229-604X
DOI - 10.17958/ksmt.18.2.201604.261
Subject(s) - ball valve , ball (mathematics) , geology , materials science , geotechnical engineering , mechanical engineering , engineering , geometry , mathematics