DAMPING SPRING
Damping spring is for kelly bar accessories,it assumes spiral-shaped,the elasticity is strong ,each different specification of spring is suitable for different type of kelly bar.
Packaging
1. Wrapped with plastic film
2. Fixed with iron support or wooden case or Iron case
Any Interested Welcome Contact Cathy Lee
Any need feel free connect me please https://api.whatsapp.com/send?phone=8613311085686
After clicking on the link on the phone you can use Whatsapp to contact me directly.We can discuss more details in there .