... used for drywall -stud & track, suspended ceiling system- main channel and furring channel, . Our factory main produce steel profile used for drywall ... partition system and suspended ceiling system , including drywall stud & track, metal frame for ceiling suspension, ceiling main & cross tee, wall angle, C ... Rail 25*21Furring channel 28*38, 16*38Furring channel track 28*20*30,16*20*30Stud 51*33.5*35 ...