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Valving Spear of Workover

Valving Spear of Workover

Valving Spear of Workover
Valving-Spear-of-Workover-and-die-collar.jpg

The collar spear is a special fishing tool used to catch the fish whose top is a collar. It features that it can engage exactly the fish no matter when the collar is in larger casing annular space or in smaller pipe string.

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