강철 등급
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Dx51D, Dx52D, Dx53D, DX54D, S220GD, S250GD, S280GD, S350GD, S350GD, S550GD ; SGCC, SGHC, SGCH, SGH340, SGH400, SGH440, SGH490, SGH540, SGCD1, SGCD2, SGCD3, SGC340, SGC340, SGC490, SGC570 ; SQ CR22 (230), 제곱 CR22 (255), 제곱 CR40 (275), 제곱 CR50 (340), 제곱 CR80(550), CQ, 일천초분의 일초, DDS, EDDS, 제곱 CR33 (230), 제곱 CR37 (255), SQCR40 (275), 제곱 CR50 (340), 제곱 CR80 (550) ; 또는 고객의 요구조건
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