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DOMBETTER ® air spring is a high-end brand of automotive air spring jointly created by European TIP-TOPOL Company and Dombetter Automotive Technology (Shanghai) Co., Ltd. The products are widely used in buses, trucks, trailers chassis suspension and truck cab, seat suspension. DOMBETTER ® air springs start selling in 2019, and have top three market shares of trailers and buses in China since 2021. All products were imported from the TIP-TOPOL European base. In 2022, the Chinese assembly plant and laboratory jointly established by both parties brought into service. The key components such as rubber membranes still come from the European base. Meanwhile, Dombetter Air Spring (Nantong) Co., Ltd is a Chinese production base jointly established by TIP-TOPOL Company and Dombetter Automotive Technology (Shanghai) Co., Ltd based on the global strategic layout in 2023. It is expected to start production at the end of 2025. All key production elements such as rubber formulations, production processes, quality control, and equipment parameters are supported by TIP-TOPOL Company to ensure that the product performance of the Chinese base and the European base is consistently stable.