metal frame used for suspended ceiling system- main channel, furring channel and accessories, . Our factory main produce steel profile used ... partition system and suspended ceiling system , including drywall stud & track, metal frame for ceiling suspension, ceiling main & cross tee, wall angle ... .Main Channel 38*12, 38*11, 50*15, 45*12Omega(furring channel) 68*35*22, 35*16, 45*22, 50*22 ...