C U metal stud and track machine CD UD Drywall keel steel machine Partition walls C profile machine 

Metal framings include furring channel, carrying channel, studs, tracks, wall angle, and main frame channel used in concealed grid gypsum ceiling of light weight structure. Two most commonly used frames are metal U Track, used as the horizontaframework of stud partitions, in conjunction with vertical studs (c Studs).
Strong, light weight, simple to installation and avallable in a variety of sizes, metal studs and channels provide for the ideal and cost effective wall and ceiling applications when used with several layers of gypsum board.