3V1 Series Features: 1. Direct acting normally closed, commutation sensitive; 2. without lubrication; 3. Can be integrated multi-valve, saving installation space; 4. attached manual device, which will help installation; 5. more kinds of standard voltage levels are available; Automation Technology Co., Ltd., Shenzhen and trustworthy (AirTAC a proxy) Price Supply: Original Taiwan, Asia and Germany polite dynamic components, price, quality, even national security (one year), leave a compensable one hundred , customers are welcome to inquire order,