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City gas medium pressure pipeline cathodic protection test pile should be how many meters a
- Author:Libo
- Source：wwww.voypictures.com
- Date：2021-06-11
- Click：0
The setting principle of urban pipe network test pile is generally: 1 potential test pile/km; 1 current test pile / 10km; When crossing the road, railway, village, etc., the current test pile shall be set up as required.
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