1. The series of our company's low noise sets has a compact structure in general. And the double built-in mufflers effectively reduce the noise of the units.
2. The design of up-vent structure prevents the rubbish or dust from intaking. The vent area helps the temperature inside to be appropriate.
3. Out the box there fixed a ramp. On the box there fixed an independent output button box. These make it more convenient for the users to exam, repair and connect cables.
4. The advanced surface dealing prevents the silence box from water and improves the level of its climate resisting.
5. The reasonable design for the base fuel tank and the structure of engine oil discharging makes it more convenient to use and repair.