... 1 hourCar : Two hours 7.Detailed Product DescriptionXK-450CW open roll millopen roll mill with hard-gear speed reducer, ... open roll mill is mainlyconsistof the welding base,frame,roller pitch devices, hard transmission gears, reducer, driving motor, electric control ... box,emergency stop devices, security protection devices and other components.The XK-450CW open roll mill adopts ...