drill collar

短語(yǔ)詞組

短語(yǔ)

• drill l collar 鑽鋌
• Slick Drill Collar 普通鑽鋌
• drill collar number [油氣]鑽鋌數(shù)字
• Drill Collar Fingerboard 鑽鋌指粱
• Drill Collar Slip 鑽鋌卡瓦
• weight drill collar 偏重鑽鋌
• drill collar sroove 鑽鋌應(yīng)力減輕槽
• drill collar stand 鑽鋌立柱
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