Ceiling T- Grids, T-Bars, Steel Joist Many sizes for Celing T-Bars Easy to installation Ceiling T- Grids, T-Bars, Steel JoistExposed Flat T-grids systerm: T32 ... Angle: 20× 20, 22× 22, 24× 24mm Other pattern: Grooved T-grids with black line, or according to order Material: Galvanized ... : Baking Painting End: Normal lock end & alloy lock Suspended Ceiling T-Grids,T-Bars, Steel joist