1.The Suck rod couplings are used for connecting sucker rods, polished rods and sinker bars. Material of the couplings is high quality carbon steel or alloy steel, which are conform to the requirements of API Specification 11B.

2.Classes:class T(stands for through-hardened) ,class SM(stands for sprayed metal)

3.Types of sucker rod couplings:sucker rod couplings, polished rod couplings and sub-couplings.

4.The outer diameter of the sucker rod couplings has full size and slim hole types.

5.Productive process:Cleaned,prepared,loaded on mandrels,shot blasted,flame sprayed , induction fused,forging,testing,etc.

6.The package of sucker rod couplings: in wooden cases

7.Quantity:The quantity is negotiable,1PC is acceptable

8.We are the manufacture specialized in making kinds of coupling accessories used for oilfield,tubing couplings,casing couplings,nipple couplings,full size and slim hole sucker rod couplings.All of our product with 12-month quality quarantee.