rail sleeper coach screw spike,railway fastener rail sleeper coach screw spike
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 Plated, Hot Dip Galvanized, Dacro coating Material Refer to DIN 17221,BS 970, GB/T 4357, GB/T 4358 Packing Less than 25KG per doub
kunshan alex railway fastening co.,ltd [2017-03-02 16:52:03 ]
