... . light weight, high strength, no shrinkage 1) Raw materialsgypsum powder, gypsum retaining paper, fiber(wood fiber, paper fiber, fiber glass),cornstarch ... .Normal thickness scope:7.0,7.5,8.0,8.5mm,9mm,9.5mm10mm,12mm,15mm.Length scope: 1800-3660mm, Width ... after receipt of the T/T deposit or L/C. gypsum board