片语
external thread[机] 外螺纹;阳螺纹;外丝扣
MALE NPT THREAD男性不扩散条约线
male thread nipple外螺纹接套
joint with male thread外螺纹接头
male thread elbow外螺纹弯头
male hose thread男性的软管螺纹
outside thread外螺纹
male thread throttle valve外螺纹节流阀
tapered male thread锥形阳螺纹
male round thread阳性圆形螺纹
male thread return bend外丝月弯