flanged cross
... 传动四通 Powertrain, cross joint 法兰四通 flanged cross 四通 82X Stone 82X ...
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法兰四通短接 open-flange flow cross
这种井口装置由套管法兰、套管大四通、井口阀、油管挂、油管挂体及相关附件组成。
It is composed of casing flange, casing cross joint, wellhead valves, tubing hanger, tubing head cross joint and accessories.
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