For stability and long life concrete structures , Foundations , columns, beams are ready mixed concrete by standard manufacturer. All of roof beams are reinforced concrete.
General formwork are steel forms. Bracings , studs and temporary supports acording to standard specification , such as supporting the bottom form for each beams at least 14 days , Bottom form of beam shall take-off on 7 days and temporary support up to 14 days etc. Formwork shall clean before concrete casting.