철탑의 종류 : 철새 임진강으로 보내~

철새 임진강보내~ <span style="font-size: 9pt; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">특고압 가공 전선로의 지지물로 사용하는 <span style="font-family: 바탕; letter-spacing: 0pt; font-size: 9pt; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">B<span style="font-size: 9pt; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">종 철주<span style="font-family: 바탕; letter-spacing: 0pt; font-size: 9pt; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">, B<span style="font-size: 9pt; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">종 철근 콘크리트주 또는 철탑의 종류<div><span style="font-size: 9pt; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;"> </div>인류형직선형각도형보강형내장형