tirfoane trifoane

Product Name: Screw spike/Sleeper screw/, coach screws / Drive Spikes Standard: UIC, AREMA, AREA, BS, SS, and other specifications required by clients. Specification: 22×145, 24×161..., 3/4...1"×3-1/2...7-1/2", 15/16×6, Ss5 Ss8, Ss23, Ss25, Ss36 Grade: ASTM A66-87,UIC864-1, 4.6, 5.6, 8.8, Normal and high strength. Protection: Plain, black, Zinc plated, hot dip galvanized, zinc filtrated. SS screw ...