1.T type key keel
2.T type sub keel
3.L type side keel
4.Boom
5.Utility’s ceiling boards

1.To draw the installation indication line to define the center distance of the boom,usually 1200mm.
2.Use the tapping screw fix the sub-keel on the walls around the ceiling.
3.Use mental boom to fix the T-keel,the center distance between each T-key keel is 600mm or 610mm.
4.Insert the T type sub-keel into the T type key keel,the distance between them is 600mm or 610mm.
5.Then place the Utility’s ceiling on the type keels.