socket union meaning in Chinese
凹口管节
Examples
- Non - soldering and soldering compression couplings - socket unions
非钎焊和钎焊压紧联轴节.套管接头 - Non - soldering and soldering compression couplings - tapped holes for socket unions - construction sheet
非钎焊和钎焊压紧联轴节.套管接头用螺纹孔.建造单