该阀是用来控制压缩空气流通方向或气路的通断，从而达到自动控制各种气动执行机构的目的，用作操纵机构。 This kind of valve is used to control the flow airection of ampressed air or the open / closed sfate of the air route, thereby achieving the control of pneumatic execution mechanisms. It is used as operating mechanism.
QR5系列 推拉式手动换向阀
