There is a positioning device for securing the spindle in an angular position relative to the head portion in response to the type of the valve of the bicycle tyre to be inflated.WU SCOTT
5. Valves for petroleum industrial: Ball valve, Gate Valve, Global valve, Check valve with differnet standard6. Station Automation system: Station Retail system, Cell phone APP system, Tank Gauging system7. Auto Parts: Tyre inflator, Wheel Balancer, Car Washi...