... ductile cast iron, steel Thickness of zinc coating:>90um Competive price Big production capacity Railway Fitting,Power Fitting, Power Line ... casting, permanent mold casting, forging, stamping and CNC machiningThickness of hot dip zinc coating: >90umConnecting type: socket type, groove ... type, etc.Application: Power transmission system, contact network of railwayAnnual production capacity:50000 tons