A rilru a buai em em a, a rilru a hah em em bawk a. spiral staircase

A rilru a buai em em a, a rilru a hah em em bawk a. spiral staircase

Data hmasa ber
lifting sang tak a ni 2700 mm
Ladder diameter a ni 2000 mm
A chhung lam diameter 100 mm
Step awm zat 11
angle a awm a 450°
Step thickness a ni 50 mm
Step San zawng a ni 245 mm
step angle a ni 40.9°
step sei zawng a ni 950 mm

Step size dang pawh a awm bawk
Step zau zawng 699 mm
step blank a zau zawng 746 mm