Product List (Total 3 Products)
Drill Collars are the most important parts of all drilling string elements. The performance of drill collars will effect the efficiency of drilling. Our mission is to provide our ...
Last Updated: Nov 03, 2008
Integral heavy weight drill pipes are manufactured from AISI 4142H-4145H modified drill collar material according to SY/T 5146-1997,
Specification: 5"OD*3"ID NC50
3 1/2"OD*2 ...
Last Updated: Nov 03, 2008
Dirlling pipe with API Spec 5D
1)OD: 2-3/8"~5-1/2"
2)Grades: E-75, X-95, G-105, S-135
3)Upset ends: EU, IU, IEU
4)high quality
5)reasonable price
Looking forward ...
Last Updated: Nov 03, 2008
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