मात्र 7 फीट में सीढ़ी | 7 by 7 feet mein सीढ़ी कैसे banaye | kam jagah me sidhi | round sidhi kaise 

#7feet me sidhi kaise banwaye
#kam jagah me sidhi kaise banaye
#civilengineeringsupport
other points
sidhi kaise banwaye
sidhi ka chaudai kitna rakhein
stair ka lambai kitna rakhein
sidhi kaise banega
sidhi ka shuttering kaise karein
staircase kaise banaye
sidhi kam jagah me
matra sat feet me sidhi
sabse chota sidhi
u shape sidhi ka shuttering