... 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 ... the conduits fittings and pipe accessories. ItemODThicknessLengthMaterialSurface Treatmentclass 3 conduit20mm/ 3/4"0.6mm-1.6mm3m-6m steel pre- ...