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Ross Furnace : ウィキペディア英語版 | Ross Furnace
Ross Furnace is a historic iron furnace located at Fairfield Township, Westmoreland County, Pennsylvania. It was built in 1842, and is a stone structure measuring 25 feet square at the base and 30 feet high. It has a triangular work arch and Roman blast arch. It remained in blast until about 1850-1855.〔(【引用サイトリンク】 National Historic Landmarks & National Register of Historic Places in Pennsylvania ) ''Note:'' This includes 〕 It was added to the National Register of Historic Places in 1991.〔 ==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Ross Furnace」の詳細全文を読む
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