Hyoshin Mechatronics Co.,Ltd. also called Autosigma as our brand was established 1984. Having started to produce solenoid valves for industry, our brand has been constantly launching items such as solenoid valves for gas, agricultural Irrigation, pneumatic valves, electrically motorized valves, etc. We have a variety of certificates and patents to meet your market demands through R&D. For these products, ours are supplied to a variety of clients such as POSCO, Hyundai steel, and more. Recognized and still in domestic market, we are enthusiastically about to expand our business area, which is overseas market.Keeping our products with great quality is our priority.