1.Light weight 2.Raw material-Abandoned sources 3.Ten-proof advantages 4.Foam inside 5.Easy for installation Product introductionOur company mainly uses plant fiber materials and abandoned sources like straws, wheat straws, cornstalks, sorghum stalks, sawdust, coal ashes to combine with normal Portland cement or Magnesium oxide and Magnesium chloride and own-researching core technology raw ...