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기술연구
BIM과 기술융합
기술 연구와 개발
지적재산권
patent
The upper part reinforcement structure of a steel pipe for base construction
등록번호 : 10-0458323
등록일 : 2004-11-15
만료일 : 2022-01-30
The upper part reinforcement structure of a steel pipe for base construction
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