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- Steel Drill collar
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When ordering short drill pipe , please specify:
Outside Diameter,Inside Diameter,Steel Grade,Length,Internal Coating Material
Features:
1)Standard:API SPEC 5D
2)OD 2 3/8",2 7/8", 3 1/2", 4", 4 1/2", 5",5-1/2"
3)Grad...
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Jiyuan Jinyuan Heavy Machinery Manufacturing Co., Ltd.
[Verified]
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Negotiable
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