... on the sleepers. The is invented by Robert Livingston Stevens in early 19th century. At that time, English mainline use railways us...
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... with two ends are also called double head screw s, usually used with Nabla fastening system. Very popular in Africa. Our double headed r...
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Products Description The dog spike is used to fasten T-shaped rail road track to wooden ties, which has an L-shaped head and square shank, and the und...
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Materials: Steel Q235,35#,45#; Alloy Steel 40Cr,42CrMo,35CrMo Grade: 3.6/4.6/4.8/5.6/5.8/6.8/8.8/10.9/12.9 Surface: Plain Oiled, Oxygen Black, Zinc Pl...
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