Products specifications:1)Main frame: welded H beam and column ,surface of steel with painted or galvanized ;2)Purlins: hot dip galvanized C section steel or Z section steel .3) Wall insulation material: 50mm /75mm/100mm thickness eps sandwich panel / glass wool sandwich panel / corrugated plate +glass wool + corrugated plate or aluminum paper / rock sandwich panel etc4) Roof insulation material:  50mm /75mm/100mm thickness eps sandwich panel / glass wool sandwich panel / corrugated plate +glass wool + corrugated plate or aluminum paper / rock sandwich panel etc.5)Window: Pvc window or aluminum  window or skylight 6)Door : sandwich panel sliding door or corrugated plate slding door or electrical roller door etc.7)Accessories : down pipe (pvc ), gutter, ventilator, deck sheet, foundation bolts, normal bolts,bracket  bolts, shearing bolts, high strengthen bolts,nuts, plates, washers ,flange, tension rod ,crane etc.Installation:We will send you installation manual before shipping.  If your local workers can install buildings according to installation manual , we can explain it on line, till finish it . If your workers don't know how to install , we can send our engineer to your local to guide the installation etc.