gantt
title 70 TPH WHRB
dateFormat YYYY-MM-DD
section Task
a1 Fabrication of Columns : a1, 2014-01-01, 30d
a2 Fabrication of Beams : after a1 , 20d
a3 Fabrication of Bracing : after a2 , 2d
section Another
Task in sec : 2014-01-12 , 12d
another task : 24d