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We use hash algorithms to make sure that an attachment is the one we directly provide to users and that it has not been maliciously changed by others. You may use a verification tool to see if an attachment’s hash value matches its hash verification code listed on this website (please remember to use SHA256). Thank you.
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1.頭屋鄉頭屋村供水延管及用戶外線工程(二)-工程資料.pdf
雜湊值驗證碼(SHA256)： DE1B4EE63A5AF32F0D2034CE48FB6484A556F8BB4F7C6C764437FC68CF46D895