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Terms containing kelly cock | all forms | exact matches only | in specified order only
SubjectEnglishChinese
dril.kelly cock方钻杆防喷安全阀
oilkelly cock方钻杆阀
oilkelly cock方钻杆旋塞
tech.kelly cock方钻杆上部阀
dril.kelly cock wrench方钻杆旋塞扳手
dril.kelly cocks方钻杆旋塞
oilkelly stop cock方钻样回流阀
dril.kelly stop cock方钻杆防溅旋塞
dril.kelly stop cock方钻杆回流阀
oillower kelly cock方钻杆下旋塞阀
dril.lower kelly cock方钻杆泥浆防溅下旋塞阀
met.upper Kelly cock凯氏上旋阀
oilupper kelly cock方钻杆上旋塞

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