... . light weight, high strength, no shrinkage 1) Raw materialsgypsum powder, gypsum retaining paper, fiber(wood fiber, paper fiber, fiber glass),cornstarch ... UseSound insulation, heat insulation, moistureproof, fireproofs, water-resiatance, non-desulfuration, environmental protection, pure nature, non-radioactive; be used in hang ceiling ... after receipt of the T/T deposit or L/C. gypsum board