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1.Halliburton type, all could change with Halliburton parts.
2.All the equipment are produced according to API standard.
The hydraulic jar is included as part of a tool string to help remove stuck tools.The jar helps free a stuck
tool or toolstring by resisting a pull on the workstring. When the workstring is stretched by the pull, tension
in the jar is released and an upward impact is delivered to the stuck tool.