短语词组短語cold ring -rolling mandrel 冷軋芯輥ring -rolling 環軋制ring parts rolling 環件軋制ED -Ring-rolling 電火花擺碾ring rolling machine [機]擴孔機;輾環機;圓殼滾軋機ring rolling mill 輪箍軋機;環件軋機;軋環機seamless ring rolling [機]無縫環軋制 返回 ring rolling