-------------------------------------------------- Note added at 2004-02-20 23:12:20 (GMT) --------------------------------------------------
(?) ale też : backfill - Material placed in a drilled hole to fill space around anodes, vent pipe, and buried components of a cathodic protection system.
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-------------------------------------------------- Note added at 2004-02-20 23:12:20 (GMT) --------------------------------------------------
(?) ale też : backfill - Material placed in a drilled hole to fill space around anodes, vent pipe, and buried components of a cathodic protection system.