Zhengzhou Natong Auto Parts Co., Ltd, Established in 2013, own it's factory, is a leading professional manufacturer specializing in the developing, producing and selling of eddy current retarder, with a primary focus on bus and truck retarders. These retarders are designed to provide reliable braking solutions for a wide range of commercial vehicles, ensuring optimal efficiency and durability even in the most demanding operating conditions. We accept OEM/ODM service. With years of experience and expertise in the automotive industry, quality is always our goal and will always comply with international standards, Every retarder has passed the test. We believe we could become your reliable supplier, sincerely hope to establish business relationship with you!