631# Fireproof PVC gypsum ceiling boards 1.Anti-fire,Environmental friendly,heat-insulation 2.Matched with t-bars for ceilings Commodity631# Fireproof PVC gypsum ceiling boardsComponentsPVC film as its top,Alu.foil as its back treatment,and green gypsum boards as the raw material.Advantages1.Moistureproof,waterproof,anti-sinking,heat-insulation,fire-proof, environmental protection.Sizes& ...