It is made of high-quality aluminum alloy and has good hardness, flexibility and elasticity. The surface adopts advanced technology such as powder electrostatic spraying, thermal transfer wood grain, electrophoresis, anodized oxidation, etc., the color is delicious, does not fade, does not layer, does not yellow, and is durable. The production process is rigorous, and the muffler and the sealing code are made of high-quality virgin rubber, which is quieter, more lubricated and more beautiful.