It has the same revolving 90 degrees movements, what is different is the cockbody is the spheroid, has the circular through hole or the channel passes its spool thread.
它具有相同的旋转90度动作，不同的是旋塞体是球体，有圆形通孔或通道通过其轴线。
2
It has the same movement rotated 90 degrees to mention only difference is that Jacket Ball Valve cockbody is a sphere, a circular through-hole or channel through its axis.