... and sound-absorbing,soundproof,heat-insulation 8. Purpose: Apply for wall partition and ceiling suspension ,the front surface with green paper-faced ... : 50mmx90m etcPacking: 24rolls/boxJointing compound: 5kg/bagMain channel, furring channel,wall ange, U track,T-Grid etc, sizes upon your detailed ... in the near future,thank you. gypsum board for drywall partition ( plaster board or sheetrock )