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Float valve is one of necessary tool for oil drilling,it consists of float valve sub and float valve,Whatsapp+8615972752793 the main function is to prevent mud brings drill cuttings,luben@youlongpetro.com sediment backfilling which will cause bit bore blocked when connecting each joint.https://www.youlongpetro.com When the well blowout or kick, Whatsapp+8615972752793 the valve cover of float valve turn off the bore automatically,luben@youlongpetro.com it will prevent well blowout accident. -
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