Zhejiang Theoborn Auto-Control Valves Co., Ltd. is dedicated to the manufacture of pneumatic actuators and all kinds of valves. Our products fundamentally transform the complex traditional usage of valves, incorporating high technology with the control process of valves, greatly improving the efficient usage of valves, largely diminishing the controlling cost, and obtaining considerable profits for enterprises. Main Products: Pneumatic actuators, actuators, dual action pneumatic actuators, spring return pneumatic actuators, pneumatic flange ball valves etc. Our products have passed CE certification. Our company is located in Wenzhou City which possesses a long history of manufacturing valves and pumps. Inspired by our experience of manufacturing valves and pumps, supported ..