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.
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Packaging
1. Wrapped with plastic film
2. Fixed with iron support or wooden case or Iron case
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Any Interested Welcome Contact Cathy Lee
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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 .