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Detailed Product DescriptionProduct Name:Screw SpikeApplication:RailwayGrade:4.6, 5.6, 8.8, 10.9Material:Q235, 35#, 45#, 40CrSurface:Plain (oiled), Oxide Black, Zinc, HDG, Wax, Bitumen, DacrometStandard:ISO898-1, UIC864-1, And NF F500-50Plain Driving Railr…