auto lock safety joint

同义词释义

1)auto lock safety joint,自封安全管接头2)auto isolator,自封装置3)wellhead self-sealing,井口自封4)seal line,自封线5)self-sealing,自封闭6)self-sealing pressure,自封压力7)Self-closed joint,自封接头8)Hydraulic and self-sealing,液压自封9)mechanism of self-seal,自封机理10)Self-packaging,自封装