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drill pipe :
1) Standard: API5D. P11,T11,P22,T22, E355 according to E10297 etc
2) Outside diameter: 60.3mm-139.7mm
3) Wall thickness: 7.11mm-10.54mm
4) Length: according to customers' requests
5) Tolerance: meet the standard
6) Material: E-75,X-95,G-105,S-135
7) Surface: Pickled & Annealed
8) Packing: bundle with knitted plastic bag, wooden case or according to customers' request
9) Application: for well drilling
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