Introducing our high-quality products from Hitachi EX100-3 mini excavator parts range! As a factory specializing in swing reduction gear box components, we guarantee top-notch performance. Our ring and pinion gears, along with the sun gear and planet gear, are all meticulously crafted to meet various size requirements. With our extensive experience, we offer customized solutions that cater to your specific needs. Trust us for reliable, efficient, and durable excavator parts that ensure operational excellence.