The plastic secondary gear set adopts a unique heat treatment technology in casting to increase the hardness of the ring gear, improve the wear resistance and impact resistance of the product; secondly, it is cast with high-strength steel, and the optimized rotary kiln ensures that the parts can be used for a long time. The stability under operation prolongs the service life of the product during use. Finally, increase the production scale of gears, invest in technical content, and carry out mass production of products, with short construction period and high quality.

Production
