A.再生鋼筋 B.熱軋直條鋼筋 C.余熱處理鋼筋 D.盤(pán)卷光圓鋼筋
A.2009-03-01 B.2007-08-14 C.2008-03-01 D.2008-09-01
A.GB1499.2-2007 B.GB1499.1-2007 C.GB1499.1-2008 D.GB1499.2-2008