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Releasing and Circulating Overshot is LT-T type special external fishing tools used for fishing drill collar, drill pipe tubing and other fishes in drilling and work over operation.
Releasing and Circulating Overshot is LT-T type special external fishing tools used for fishing drill collar, drill pipe tubing and other fishes in drilling and work over operation.
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No. 235, Weigao Garden, Torch High tech Industrial Development Zone, Weihai City, Shandong Province, China 
