Yudo Hot Runner India Pvt. Ltd. Supplies Valve Gate System for Mechanical Gate Open and Close. Yudo Hot Runner India Pvt. Ltd. Is an ISO 9001:2000 registered company. Valve Gate System for Mechanical Gate Open and Close is available with a sequence timer. Valve Gate System for Mechanical Gate Open and Close has sequential molding which makes weld line controllable, consequently enabling to eliminate or minimize wildlife as well as enabling to improve flow mark. This system has optimum sequence which can be found easily and molding with optimum sequence enabled.