No.

Name

Specification

Unit

1

Pup joint type of centralizer

Φ60

piece

2

Niuka type of centralizer

Φ60

piece

3

Tubing centralizer

Φ60

piece

4

Casing centralizer

Φ138

piece

5

Sucker rod nylon centralizer

Type A

piece

6

Sucker rod nylon centralizer

Type B

piece

7

Sucker rod carbon centralizer

Type A

piece

8

Sucker rod carbon centralizer

Type B

piece