Search “서울대오피OP♀［!OPOPGIRL17닷COM］（서울대오피）（서울대오피）♀（서울대휴게텔♂서울대오피추천♂서울대건마）♀（서울대오피촌♂서울대안마）”
The largest single piece of steel in the staircase is 17 feet long and 10 feet tall.
The largest single piece of steel in the staircase is 17 feet long and 10 feet tall.