Head Free Type Joint Bar的意思|示意
美 / /
英 / /
无头式接头杆
Head Free Type Joint Bar的网络常见释义
铰形鱼尾板 ... Head Contact Type Joint Bar 楔形鱼尾板 casing head and landing joint 联顶节与套管头 Head Free Type Joint Bar 铰形鱼尾板 ...