... Steel Frame or Frameless(EPS,PU,rockwool,glasswool) prefab house (panel house) Used as residential dwelling, accommodation, temporary office,etc. We ... & steel structural members fabrication,processing, such as H section, I beam, channel steel, C/Z purlin, many kinds of trusses ... house, such as color Al-Zn or galvanized steel sandwich panel (EPS,PU,rockwool,glasswool insulation), and color Al-Zn ...