Search “서대문오피OP♀［!OPOPGIRL17닷COM］（서대문오피）（서대문오피）♀（서대문휴게텔♂서대문오피추천♂서대문건마）♀（서대문오피촌♂서대문안마）”
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.