产品名称：The characters of Rigid Centralizer
1. Used for centralizing of open-hole wells,
2. The Balls can reduce friction with well case.
2. The Balls can reduce friction with well case.
No. | Spec. | OD/mm | ID/mm | Length/mm | Remarks |
1 | PFZ-230/180 | 230 | 180 | 180 |
|
2 | PFZ-230/142 | 230 | 142 | 180 |
|
3 | PFZ-200/142 | 200 | 142 | 180 |
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