... K55, St37, St52, St37-2, ST54...Thickness2.11 - 100 mmSection ShapeRoundOuter Diameter21.3~1219.2mmPlace of OriginJiangsu ... A106B, ST37, ST52Outer DiameterDN100-DN900 Advantage: • Fusion bonded Epoxy-coated Steel Pipe • Excellent Corrosion Protection. • More than ... -Cycle. • Nationwide Availability. • Sustainable. • Coated with epoxy resin • Trustworthy brand(LuHuan) Customer’s photos:Authentication ...