GI Flexible conduit 1.Carbon steel 2.1/2",3/4",1",1 1/4",20mm,25mm,32mm 3.Galvanised GI Flexible ConduitMaterial: galvanized steel stripFinish: galvanised inner diameterGFC-133/8"13mmGFC-181/2"17mmGFC-223/4"22mmGFC-271"28mmGFC-351-1/4"36mmGFC-411-1/2"41mmGFC-522"52mmGFC-632-1/2"65mmGFC-783"79mmGFC-1034"102mm GI Flexible conduit