rig drill

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Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical

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Planes from the drilling rig , drill pipe to send and entrusted pipe hydraulic cylinder are used , safe and reliable .

钻机的起架、送钻杆、托钻杆均采用了液压油缸，安全可靠。

zuàn jī de qǐ jià 、 sòng zuàn gǎn 、 tuō zuàn gǎn jūn cǎi yòng le yè yā yóu gāng , ān quán kě kào 。