We are manufacturer of non-asbestos calcium silicate board챦쩌�fiber cement board in China with leading technology, high quality and competitive price.The building materials could be applied in partition system, ceiling system and passive fire protection system (tunnel, fire protection wall, and air ducts enclosure---) to be the replacement of gypsum board and brick wall.The max thickness of our boards could be at 60mm without flaking.The passive fire protection system could maintain 2-4 hours in a fire with intact and heat insulation when applied of our calcium silicate board.Noise reduction could be at 60dB.If you are interested in this business opportunity. please feel free to contact us .Hope to cooperate with you!