1. The equipment consists of one base, frame, front and rear roller, transmission gear, reducer, motor, adjusting devices, safety switches and electrical control components.
2. The rollers adopt alloy cold hard cast iron (rollers implement national standard by HG/T 3108-1998) surface hardness wear and long life, can be repeatedly repair.
3. The device has low noise, high efficiency, low energy consumption, simple operation, without any environmental pollution.