Specification
Size:2-3/8"~20";
Hole Diameter:8-21 mm
Thread:LC,SC,BC,RT-BC,100% replace premium connection,for example:Vamand Hunting;
Grade:All grade of API,Stainless Steel
Sucker Rod Couplings for Sucker Rod and Polished Rod
Screw Pump Special Sucker Rod
High-strength Sucker Rod
Sucker Rod
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