POLE LINE CONSTRUCTION - PART III - ERECTING POLES AND ATTACHING CROSSARMS

Описание к видео POLE LINE CONSTRUCTION - PART III - ERECTING POLES AND ATTACHING CROSSARMS

POLE LINE CONSTRUCTION - PART III - ERECTING POLES AND ATTACHING CROSSARMS - Department of Defense 1958 - PIN 28336 - ERECTING POLES USING EARTHBORER AND BY MANUAL METHOD; FACING AND ALIGNING POLES; INSTALLING SINGLE, DOUBLE, SIDEARM, BUCK, AND "H'' TYPE CROSSARMS.

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