Since 1985, engaged in factory automation parts, hydraulic and pneumatic parts, HVAC parts etc, Hyoshin mechatronics co.,ltd ( Brand name: Autosigma ) continues to do both R&D investment and enthusiastic marketing, serving to clients all over the world. As showin in hyoshin company website www.hyoshin.co.kr , company main item is 2port pilot solenoid valve, and variations for different industries, HVAC and Pneumatic parts etc for many years influence both Korean and international industries and still search for possibilities to introduce its goods to every corner of the world market.