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建议楼主提供一下此类钢种的标准 # O7 k6 Q3 E4 v) q+ U9 h" h这样才能按图索骥 5 U" J9 m4 R3 K# c: P舞钢庞龙 发表于 2010-4-18 20:53 http://www.3dportal.cn/discuz/images/common/back.gif
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