配管規格を探しています – 地中鋼管のエポキシコールタール防食層技術基準
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1996年版しか見つかりません。最新の2014年版が欲しいです。どなたか電子版をお持ちの方はいますか？ご協力をお願いします
ああ、とても古い技術だよ。三油二布や五油三布とかいうやつ。この工法で施工する時は絶対に注意しないと、数年で全部腐ってしまうよ
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