Steels for Building Structure, SN, SHN, SNR

SS    : Steel Structure ——-일반구조용 압연강재
SM   : Steel Marine——— 용접구조용 압연강재
SN    : Steel New————내진 건축구조용 압연강재
SHN  : Steel H-Beam New—-내진 건축 구조용 압연 H-BEAM