Short-rod Centralizer with Double External Connection and Self-locking Coupling Centralizer
本结构产品是用耐HS2的4140或4340特钢材料，冷挤轧制两端为外螺纹制成的短杆，并在杆体上装配一个可以绕轴旋转或直接注塑一个不可旋转的外圆上有4个凸棱的扶正件组合结构。
This product uses special steel 4140 or 4340 that is resistant to HS2 to roll into a short rod with external threads at both ends by cold extrusion. The rod is equipped with centralizing parts that can be rotated around the shaft or directly mold a non-rotating excircle with 4 ribs.