45度螺纹弯头	90度螺纹弯头	承插三通	渐缩管
45°Theaded Elbow	90°Theaded Elbow	Theaded Tee	Swage Nipple
双头螺纹短节	螺纹四通	螺纹活接头	六角内接头
Theaded Nipple	Theaded Cross	Theaded Union	Hexagonal Nipple
螺纹管箍	螺纹管帽	六角内外丝螺纹接头	中间六角内螺纹接头
Theaded Coupling	Theaded Cap	Hexagonal Head Bushing	Female Hex Coupling