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No.474 XI'er road,Dongying,Shandong,China China
Pipe body Upset type Tool joint Designation Nominal weight Grade Wall thickness in.
The drill collar is mainly used to provide bit weight to drill bit so that drill pipe is in tension. Especiall
Our company has ability to provide you each kind of Non-magnetic Drill Collar according to the national formu
Spiral drill collar is used to reduce contact area with hole so as to avoid efficiently bit sticking from diff
My company&#*9;s API casing in strict accordance with the standard-setting production, export common type of c
Contact Person Mr. Alan Wu
Address No.474 XI'er road, Dongying, Shandong
We will contact you soon .
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