... and track 2,ISO,90001ceitificate. drywall studsteel stud is for gypsum drywall system like Knauf and Lafarge. ... and modify. So good! Track for gypsum drywall systemSize: 52x25mm 62x25mm 72x25mm 76x25mm 92x50mm 107x50mm 152x50mm ... cable support system,drywall linings, drywall steel sections, drywall framing,drywall ceiling, drywall steel framing, drywall furring channel, drywall finishing sections photos ...