Q235-A steel Grade 4.8 6.8 8.8 10.9 Screw Bolt For Wood Sleeper Product Introduction 1. The screw spike material is Q235-A steel with standard GB700. 2. The upper thread screw spike is M24 with the ...View More
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Q235 A Steel Grade 4.8 6.8 8.8 10.9 Screw Bolt For Wood Sleeper