... can keep its shape without swelling and deformation after a long time.4) Sound proof: Reduce indoor noise.5) Environmental ... bugs, fungus and corrosion,so it can last for a long time.8) Easy installation: Painting, tiling and nailing can ... Line Capacity Actual Units Produced(Previous Year) Fiber cement board, Calcium silicate board, Fiber glass ceiling, rockwool ceiling, Mixing machine, Paver ...