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cast iron manhole cover with frame是什么意思
中文翻译铸铁人孔座及盖板
网络释义
1)cast iron manhole cover with frame,铸铁人孔座及盖板2)cast iron manhole cover,铸铁人孔盖板3)cast iron cover base,铸铁盖座4)cast iron flat,铸铁盖板5)manhole cover ring,人孔盖座6)cast iron cover of well,铸铁井盖板