Railway fitting Material: ductile cast iron, steel Thickness of zinc coating:>90um Competive price Big production capacity Railway Fitting,Power Fitting, Power Line Fitting, OEM service availableMaterial: Ductile cast iron, steel or stainless steelProcesses: forging,sand casting, investment casting, die casting, permanent mold casting, forging, stamping and CNC machiningThickness of hot dip zinc ...