China-Places.com ha enumerado aproximadamente 6 fabricantes en sichuan. Algunos de los fabricantesmejor calificados en sichuan son- China Railway Erju Group Electron Integration Limited Company, Sichuan Huifa Machinery Equipment Limited Company, Chengdu Chuanbei Electron Machinery Equipment Limited Company, Sichuan Baochen Electronic Co.Ltd., China Railway Erju Group Electron Integration Limited Company & Fábrica de impresión de la Universidad Southwest Jiaotong.