... height, roof slope2.typesingle span,double-span ,Multi-span,single floor,two story or muti-storey3.basecement and steel foundation ... , PU etc insulation8.Window and doorPVC or Aluminium Alloy windows,roll up door or sandwich panel sliding doors,9.accessories:semi-transparent ... snow load, earthquake grade etc.Construction Steel Structure Car showroom side show:If you need we design for you, pls supply ...