Sucker Rod Coupling

Two types of sucker rod coupling are available which meet API Specifications: Regular API Class T Coupling and Spray Metal Coupling for anti corrosion.
The Spray Metal Sucker Rod Coupling is my special product, which is processed with some special technology, coated a layer of abrasion-proof, wear-proof and lessening friction coat. It can not only protect itself but also the rod, preventing and slowing down the wear. The coupling has many types and sizes, and it is made of good quality steel alloy 40Cr. It has three functions : wear proof, corrosion-resisting and reducing the friction.
1) Material: Seamless Alloy Steel 40Cr (AISI 5140)
2) Standard: API Spec 11B
3) Class: T& SM
4) Main specification: 5/8", 3/4", 7/8", 1", 1 1/8"