239000000463 material Substances 0.000 claims abstract description 5.230000005484 gravity Effects 0.000 claims abstract description 14.238000004519 manufacturing process Methods 0.000 title claims abstract description 17.
Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by 현대중공업 주식회사 filed Critical 현대중공업 주식회사 Priority to KR1020120096115A priority Critical patent/KR20140029898A/en Publication of KR20140029898A publication Critical patent/KR20140029898A/en Links Inventor 김하나 Original Assignee 현대중공업 주식회사 Priority date (The priority date is an assumption and is not a legal conclusion. Google Patents KR20140029898A - Permanent ballast tank and ship of installation permanent ballast tank and manufacturing method of permanent ballast tank KR20140029898A - Permanent ballast tank and ship of installation permanent ballast tank and manufacturing method of permanent ballast tank
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