1. The surface is round and firm.
2. Thesurface is smooth without burs and the workmanship is high
3. Screw thread design , deep threadUniform tooth pitch
4. Dispense glue for half a circleGood anti-skid effec
5. Corrosion resistant , rust proof anddurable
2. Thesurface is smooth without burs and the workmanship is high
3. Screw thread design , deep threadUniform tooth pitch
4. Dispense glue for half a circleGood anti-skid effec
5. Corrosion resistant , rust proof anddurable