... & sound insulation 4)Use for indoor fause ceiling PVC gypsum board with t bar for ceiling decoration We are speclialized manufacture and ... ,damp proof ,heating insultation.easy to operate(swan ,nailed ,or milled) and disassemble .It is widely applied in industrial and ... : 1) Main Tee: 24 x 32 x 3.6m, or 3.0m, 3.05m, 3.66m 2) Cross Tee: ... : 1) Main Tee: 24 x 38 x 3.6m, or 3.0m, 3.05m, 3.66m 2) Cross Tee: ...