API Spec 11B
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3/4'' API Full Size Spray Metal Sucker Rod Coupling

1)Type :Full Size Spray Metal Sucker Rod Coupling

2)New:Both-way Protection Globoidal Coupling Full Size SM Coupling with Big Chamfer

3)Material:High Quality Carbon Steel AISI 5140

4)Coating:Spray Material Ni60A Alloy Coating

5)Basic Hardness:HRC 16-23

6)Surface Hardness:HRC 55-62

7)Hole Rote:2%

8)Min.Hardness of the layer:595HV0.2

9)Standard:API Spec 11B

10)Coupling Diameter:3/4''

11)Weight:0.60 KG/pc

12)Package:Wooden Case

13)Payment Terms:TT