... Enamel 20/25/32mm BS4568,BN50086 Standards Item:Black Enamel U Shaped Circular BoxMaterial:Malleable IronFinish:Hot-dipped galvanization,Electro galvanizing, ... 32mmTypes:1-way,2-way,3-way,4-wayBlack enamel u shaped circular boxes,to BS4568 and EN50086 standards.Best quality ... and reasonable price.We can produce the black enamel u shaped circular boxes according to your samples or drawings,also ...