Steels for Building Structure, SN, SHN, SNR steelmax2025-03-24T13:56:55+09:006월 9th, 2018| 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 .. e-mail : steelmax@steelmax.co.kr