galvanized steel UD channel used for gypsum drywall suspened ceiling, 27x28mm I'm Brank, export manager of China largest supplier of steel profiles (track,stud, furring channel, Omega, wall angle,UD,CD,UW,CW) from China. Two of our plants have 350 workers including 50 engineers, 22 production lines, output 4,000 Tons monthly, ranking No.1 in North China. Certified by ISO9001, we apply the most ...