... or Becker.Characteristics:1. Light weight,good rigidity and strength2. Non-flammable,good fire restistance3.Exellent UV ... Architecture Manufacture Association.2) Pretreatment of aluminum and aluminum alloy:Degrease→Alkaline etch→Roughen(pickling)→Chromizing ... :Building curtain wall, ceiling, roofing, pillar, balcony, partition board, vehicle, exhibition booth, instrument enclosure, metro, shipping ...