... roofing tiles 1,high speed production 2,less tolerance by servo-motor Mitsubishi 3,10t hydrau roll forming machine for metal roofing ... isφ100.8) Transmission Device: (as drawing)a. Main motor (Jiangmen Jiangyan motor), Frequency control.b. The driving rollers are driven by ... pressure 0.4-0.6Mpa)4) Environment temperature: 0°C-40°C, relative humidity: 60-95%RH.4, Others1) After the ...