Huibo manufacturers and provides all kind of track fastening materials for railway.  
here are four major product categories
1, Bolt series: track bolt, segment bolt, metro bolt, tunnel bolt, hex bolt, square bolt, turnout bolt, fish bolt, T bolt etc., annual capacity 5,000 tons.
2, Spike series: screw spike, dog spike, elastic spike etc., annual capacity 7,000 tons.
3, Clip series: Nabla clip, elastic clip, SKL spring clip, O clip, gauge lock clip etc., annual capacity 4 million pieces.
4, Other materials and accessories: clamp plate, gauge insulator, rubber pad, fish plate, nut, plastic dowel, tie plate, spring washer, flat washer, cast iron insert, anti creeper, gauge rod etc., annual sales far more than 13 million pieces.
The diameter of the type:?12 , ?13 , ?14 , ?16 , ?18 , ?20 ,etc.
Surface treatment: color, electric galvanized, ordinary spray paint, paint, electrophoretic paint, etc.
Hardness:42-48HRC