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23(11(7 ;VWDU পએ崒崿崟嵏嵛 &*崹嵤崡 ٭嵒崊嵓ਸ崹嵤崡 ফা ॿॵॺشঝઙভ ກ崿嵔崓崫崰&$'&$0崟崡崮嵈 :¼+ :¼+

L]?]T] ]+]0&$' &$0] ]!].]H 23(1 1(7 ;VWDU ªõ ] ]?] ]O][ …ï q k - k á ' ÷ [ g V l k ù ± Ü Æ ¥ q B$ C ± Ü [ k [ ´ Ü k ¥ q B$ ï C k ú ´ Ü ª õ k ¥ q B$ ï C1HZ

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平柱

⼤断⾯・横架材

⼤断⾯・横架材⻑さ=12m