... for drywall partition system and suspended ceiling system, including drywall stud & track, ceiling main & cross tee, wall angle, main-channel ... 38*12,50*15 Furring channel/ omega 68*35*22 Stud 41*35, 50*35, 63*35, 70*32, 70 ... Furring channel track 28*20*30,16*20*30 Stud 51*33.5*35.5,64*33.5*35 ... high qualityCertificatesISO certification and export license Cellphone :0086-18301412451 metal stud and track