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No.8, Jiangshan Rd., Liyu Industrial Park, Zhuzhou, Hunan China,Zhuzhou,Hunan,China China
Hunan Tianying Drilling Rigs Manufacture Limited Company is the subsidiary firm of Hunan Tianying Technology Group Co Ltd. That formally called Zhu Zh
IADC code: 537 Metric bit diameter: 6-1/4'' Thread connection: 3-1/2'' API REG Bearing type: rubber sealed journal bearing Cutting str
Model no.: IADC745 9-7/8'' Thread connection: 6-5/8'' REG Applicable formation: abrasive hard formation such as fine granite, quartzit
IADC code: 537 12'' API pin thread connection: 6-5/8'' REG Application formation:Medium soft formation with low compressive strength s
IADC: 635 Bearing type: rubber sealed roller bearing Cutting structure: tungsten carbide inserts Gage bevel protection: hard metal Lug/shirttail prote
IADC code: 537 12-1/4'' API pin connection: 6-5/8'' REG Applicable formation: medium soft formation with low compressive strength, suc
الشخص الذي يمكن الاتصال به Ms. Lisa Miao
عنوان No.8, Jiangshan Rd., Liyu Industrial Park, Zhuzhou, Hunan China, Zhuzhou, Hunan
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