China Marine Steel Quick Agens Watertight Porta: Standard: GB/T3477-1996 pro reference
China Marine Aluminium Quick Agens Watertight Porta: Standard: CB/T3477-96 & CB/T454-1997 referendi
Rota Velox Agendi Watertight Door Haec operata est porta quaedam velox agendi, quae cito et leviter aperitur et clauditur.