laminated sandwich panels is a multifunction new type building board.The panel feature in keeping warm,heat insultation,sound insultation,light,waterproofing.And the panels are widely used in wall,roof,and monorlayer group.Different panels have different characteristics.Its sandwich use besalt and nutural mineral stone as mainly raw material.laminated sandwich panels is made through processing.Its appearance is to solve the sound pollution from the factory and public construction.