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Casing Pipe
Oil Tubing
Premium Thread Connection
Pup Joint
Coupling
Crossover
Grade 13Cr
Alloy Tube/Linepipe
Drill Pipe
Sucker Rod
Pipe Fittings
Drilling Tools
Add:Beihuan Industrial Park, Jinghai County, Tianjin
Tel:+86-022-68690381
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E-mail:sales@dlpoctg.com