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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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04-2修漏工程版本-挖損及受挖損管線作業要點(114年1月版).pdf
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