High Quality Product, It's made in Japan! Introduction: Established in July 1972, We are leading manufacturer of Rotary Valve regarding Powder Process, with 40% of domestic market share. Our company is located at Tokyo, Saitama, Osaka and Kokura. The headquarters and the factory are in Saitama. We have a 100% owned subsidiary factory in China for five years. Our product: Aishin's product are created mainly in stainless steel. Aishin specializes in manufacturing and selling supply ...