seal-welded taper pipe threaded joint 锥管螺纹密封焊连接
standard taper joint 标准锥度接头
vertical taper joint grinder 立式磨口机
Taper key joint 楔键联接
joint taper 节锥
Tangent double-taper key joint 切向键联接
multi-joint taper blade wheel 多节圆锥刀轮
welded taper pipe threaded joint 锥管螺纹密封焊连接
T-joint with female taper thread 锥形内螺纹T型接头
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