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Drilling
containing
平 接
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Chinese
English
内平扣钻杆接头
internal flush-jointed coupling
内平扣钻杆接头丝扣
internal flush style connection thread
内平钻杆接头
internal flush style connection thread
平头对接焊
plain butt-weld
平接
式衬管
flush joint liner
平接
接头
flush joint
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