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国标30特工字钢规格尺寸重量

作者: 来源: 日期:2019/12/9 8:44:32

30TEGONGZIGANGYIMI64.6GONGJIN GAODU300 KUAN128 HOUDU20

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GONGSIJIANCHIYISHICHANGWEIDAOXIANG、YIXIBUDAKAIFAWEIQIJI、YIFAZHANWEIDONGLI、YI“CHENGSHISHOUXIN SHIXIANSHUANGYING”WEIJINGYINGGUANLILINIAN、YI“KEHUDIYI QINMIANJINZE”WEIFUWUZONGZHI;JIECHENGWEIGUANGDAKEHUFUWU。ZHANGQIYILAIWOGONGSIZHONGHETONGSHOUXINYONG,SHENSHOUGUANGDAKEHUDEZHICHIHEXINLAI,ZAISHANDONGGANGCAIXINGYEDEQUDELELIANGHAODESHENGYU。


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