... 72x25mm 76x25mm 92x50mm 107x50mm 152x50mm I'm Harry, export manager of China largest factory 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 ... most strict quality control system, three steps inner inspection. We export monthly about 150 x 40'HQ to middle east, Russia ...