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for subject
Oil / petroleum
containing
full opening
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all forms
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exact matches only
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in specified order only
English
Chinese
full opening
casing head
全孔式套管头
full opening
guide shoe
全孔引鞋
full opening
multiple stage cementer
全孔多级注水泥接箍
full opening
valve
通径阀
full-opening
valve
全开阀
full-opening
valve
贯眼阀
full-opening
valve
敞开阀
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