镀锌钢卷的SPCC 密度. 标准:EN10142,JIS3302,ASTM A792,GB/T12754. 等级:美国中国总商会,CGCH,SGCC,DC51D,DX51D,DX52D,SPCC,SGCD,DX53D,S220GD,S250GD,SGHC, ...
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