... , Brazil, Colombia, Bolivia, Italy, Chile, France...steel ceiling:Main channel:25x21x0.75mm,38x12x0.8mm,36x16x0.5mm,28x20x0.6mm,Furring ... channel:28x38x0.55mm,50x19x0.5mm,35x12x0.3mm,47x17x0.5mm, ... .4-0.5mmShadowline angle:30x10x10mm,30x13x10mm,30x16x10mm,thinkness0.4mmPlaster stopping bead:30x6x15mm,30x10x15mm,30x13x15mm,30x16x15mm,thinkness 0.4-0.5mm ...