The series gates and valves are newly developed latest products utilising advanced driving techniques for easy and reliable operation . being compact with fine exterior plastic - sprayed suface for permanent protection against corrosion . they are therefore ideal equipments for controlling material flow rate and flow direction in grain and food industry 系列闸、阀门是最新研制的新产品，采用先进的传动方法，启闭灵活，可靠，结构紧凑，外表美观、防腐蚀力强，是粮食和食品加工等行业控制物流量和流向的理想设备。
