Metal Conduit of Class 3 1.Steel,ISO9001 2.Pre-Galvanization 3.20mm,25mm,32mm 4.BS31, ... BS4568 and BN50086 Standards Item:Metal Conduit of Class 3Material:SteelFinish:Pre-galvanizationSize:20mm/25mm/32mm, 3/4",1", ... 1-1/4"Types:Class 3Steel conduits,to BS31, ... / 3/4"0.6mm-1.6mm3m-6m steel pre-galvanizationclass 3 conduit25mm/ 1"0.6mm-1.6mm3m- ...