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Terms for subject Oil / petroleum containing 光 头 | all forms | in specified order only
ChineseEnglish
光头管子unthreaded pipe
光度头optical head
光杆头polished rod head
光杆夹头polish rod clamp
光电传感头photohead
闪光对焊接头flush weld tool joint
闪光焊钻杆接头flash weld tool joint

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