... Z2007.roof and wall panelsingle colorfull corrugated steel sheet,sandwich panel with EPS, ROCK WOOL , PU etc insulation8.Window and ... doorPVC or Aluminium Alloy windows,roll up door or sandwich panel sliding doors,9.accessories:semi-transparent skylight belts, Ventilators, ... Local climate: Wind speed, snow load, etc. 4. Insulation material: Sandwich panel or steel sheet. 5. Crane beam: Do you need crane ...