Black Enamel U Shaped Circular Box Iron,ISO9001 Hot-Dipped Galvanization,Black Enamel 20/25/32mm BS4568,BN50086 Standards Item:Black Enamel U Shaped Circular BoxMaterial:Malleable IronFinish:Hot-dipped galvanization,Electro galvanizing,Black EnamelSize:20mm/25mm/32mmTypes:1-way,2-way,3-way,4-wayBlack enamel u shaped circular boxes,to BS4568 and EN50086 standards.Best quality and reasonable price. ...