Ductile Iron Pipe manufacturer orient steel supplies ASTM Standard Ductile Iron Pipe, Length: SRL, DRL, Outer diameter: DN80 to DN800mm, Thickness: 1.8 to 20mm.
Black Iron Pipe manufacturer orient steel supplies Black Ductile Iron Pipes, Black Iron Pipes, SRL, DRL length, OD: DN80 to DN800mm, Thickness: 1.8 to 20mm.