push-fit spigot and socket joint 推进式套筒接头

spigot-and-socket joint [建] 管端承插式接头

fit spigot and socket joint 推进式套筒接头

socket-and-spigot joint 承窝接合 ; 承插接头 ; 插座 ; 外接头

socket and spigot joint 承插接合 ; 套管连接 ; 承插式接头 ; 插口接

socket and-spigot joint 套筒接合

socket and spigot joint WESTBANK 插口接