Materials: Advanced hot-dipped galvanized steel Feature: 1,Obtaining patent on design and profile. 2,Fire-proofing、anticorrosive and durable. 3,Very easy to install and labor saving. Specification: Supporting channel: Width(mm)*Height(mm)*Length(mm)*Thickness(mm) 18*26/30*(0.52~1.2)*2900/3000 20*37/40*(0.52~1.2)*2900/3000 Covering channel: 50*12/16/17/18/19*(0.35~0.6)*2900/3000 60*24/27*(0.5~0.8)*2900/3000 Wall Angles: 23*23*(0.35~0.45)*3000 25*25*0.5*3000 30*30*(0.4~0.6)*3000 32*32*(0.4~0.6)*3000 20*20*30*(0.4~0.6)*3000 Dimension options available