Yudo Hot Runner India Pvt. Ltd. Offers Valve Mechanism and Nozzle Constructed System. Yudo Hot Runner India Pvt. Ltd. Is an ISO 9001:2000 certified company. Yudo Hot Runner India Pvt. Ltd. Offers hot runner systems. Valve Mechanism and Nozzle Constructed System has the smart flow channel which minimizes the pressure drop in the nozzle and facilitates quick and easy color change. Valve Mechanism and Nozzle Constructed System gives the facility of true "back to back" valve stack mold. It is a patented technology featuring the valve mechanism and nozzle constructed as one unit.