Price:Negotiable
Brand:Longway

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Drill joints: oil drill pipe joints; lock joints; reducer union; crossover coupling and blank joint;blank bit; drilling joint

Material:40Cr 35CrMo 4137H 45Mn2

Length:general or customized according to needs,lengthen 1~2inch



Gina Gao
HP: +8615831190484
SKYPE: ginagao321
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