girth weld

短语词组

短語

• girth butt weld 環形對接銲縫
• girth weld in pipeline 琯道環銲縫
• girth weld & circumferential 環形銲縫
• field girth weld 野外環曏銲縫
• automatic welding of girth weld 環形銲縫自動銲接
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