TGr-EL** seires, TGr-EL**A series, TGr-FEL** seriesFIRE ESCAPE LADDERPORTABLE CARBON STEEL SERIES: TGr-EL** seires , 4.0M(2F) FIRE ESCAPE LADDER; 4.5M(2F)FIRE ESCAPE LADDER; 6.0M(3F)FIRE ESCAPE LADDER; 7.5M(3~4F)FIRE ESCAPE LADDER; Max Load Capacity >300kg, With Wall SupportCE certificatedPORTABLE AUTO-EXPANDING SERIES:TGr-EL**A seriesFrom 4.0M (2F) to 40.5M (12 F)Max Load Capacity >300kg, Auto-Expand speed, 3.0M/SecondFIXED AUTO-EXPANDING ESCAPE LADDER SERIES:TGr-FEL** seriesFrom 4.0M(2F) to 27.0M(8F)Max Load Capacity >700kg