Steel Conduit Tubes 1.Steel,ISO9001 2.Hot-Dipped Galvanization,Black Enamel ... galvanization,Electro galvanizing,Black EnamelSize:20mm/25mm/32mmSteel conduit tubes,to BS4568 and EN50086 standards.Best quality and reasonable ... price.We can produce the steel conduit tubes according to your samples or drawings,also we can ... the conduits fittings and pipe accessories. Steel Conduit Tubes