oil-sealed jar safety joint的意思|示意
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英 / /
油封罐安全接头
oil-sealed jar safety joint的网络常见释义
油封式震击器安全接头 ... 油杆自动提升器：automatic rod lifter 油封式震击器安全接头：oil-sealed jar safety joint 油封式震击器：oil-sealed bumper sub ...