... Material: Rock Wool, EPS, PU; Surface Materials: Galvanized Steel sheets or Prepainted Steel sheets.(2)Wall Thickness: 40, 50, 60, 80, 100, ... adding projects, e. G. Adding storey to small steel structure industry factory building worehouse, suburbon temporary office, residentid ... it is the most effective sound insulation material7) Pressing steel panel can be arbitrariness incise, it can satisty the ...