1) good paper,great cohesiveness. 2)reasonable and favourable priHigh intensionce. 3)good service:translation,lodging,etc Specifications1), good paper,great cohesiveness. 2)reasonable and favourable priHigh intensionce. 3)good service:translation,lodging,etc.Common gypsum boardIt uses gypsum as the main material, adding fiber, bonding agents, modifiers, formed by suppressing, mixing and drying. ...