·         Standard: EN124

·         Material: Ductile Iron/Gray Iron

·         Class:A15, B125, C250, D400, E600, F900

·         Size:300X500 350X350 340X750 400X800 450X750 etc.

·         Environmental protection and energy saving

·         Convenience for security inspection

·         Corrosion-resistance

·         Coating：Cold applied black bitumen or Coating as customers'

·         Major standards designs available