dual guided slush service valve的意思|示意
美 / /
英 / /
双导向泥浆服务阀门
dual guided slush service valve的网络常见释义
双导板泥浆泵阀 ... crowfoot guided valve 爪子扶正阀 dual guided slush service valve 双导板泥浆泵阀 annulus wing valve 环空翼阀 ...