Hanakawa gasoline saws are mainly designed with streamlined fuselage. In the industry, the magnesium alloy material is used for the first time in the engine case, which reduces the weight of machine engine by 25-30% and reduces the labor intensity of users. The handle is embedded in the post test, and it is more comfortable and more humanized. The whole machine has low noise and small vibration, and the damping system adopts spring and high strength damping rubber. It has many advantages, such as high cutting efficiency, low cutting cost and not easy to extinguish.