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기술연구
BIM과 기술융합
기술 연구와 개발
지적재산권
patent
Production Method for Upper and Lower Side FixedPre-stress(ULPS) Steel Beam
등록번호 : 10-0473454
등록일 : 2005-02-16
만료일 : 2024-11-20
Production Method for Upper and Lower Side FixedPre-stress(ULPS) Steel Beam
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