The steel tracks used in wall partition. Faced with plasterboard for decoration.thickness0.25-1.8mm,zinc50-275g steel track:1,Size 40*30mm,52x25mm, 72x25mm, 77x25mm, 102x40mm,2,lenght 2000-15000mm,3,zinc 50-275g4,thickness 0.25-1.8mm5,4/10/12/20 pcs for each package. steel track