短語詞組短語elbow w union 彎頭套管spherical elbow union 球面彎頭活管接elbow union s 直角彎管接頭elbow union joint 彎管連接頭elbow of capture union 彎頭聯(lián)管節(jié)union elbow -body 卡套式直角接頭體;詳細翻譯Bulkhead Union Elbow 艙壁聯(lián)盟彎頭 返回 elbow union