Changzhou Jianzheng Rubber & Plastic Products Co., Ltd. is a specialized manufacturer dedicated to the R&D and production of automotive rubber and plastic components. With solid industry experience and stable mass-production capability, our manufacturing base has been operating since 2007. Today, we operate dual production bases in China and Thailand, and through continuous capacity expansion and resource integration, we further strengthened our global manufacturing and delivery system in 2025—providing international customers with a more efficient and reliable one-stop manufacturing solution.
Our core product range covers automotive suspension and shock absorber rubber components, including but not limited to strut mount assemblies (top mounts), upper plates, automotive rubber shock absorber components, rubber dust covers (boots), bump stops, bushings, spring pads, and other suspension rubber parts. Backed by mature production processes and extensive multi-category manufacturing experience, we supply 3,500+ types of aftermarket shock absorber assemblies and related components, compatible with Chinese, American, European, Japanese, and Korean vehicle models. With an annual capacity of up to 15 million sets, we are able to meet diverse market requirements for fitment, scalability, and stable batch deliveries.
In product development and quality assurance, we adhere to the operating principle of high technology, high quality, and high standards. Supported by an experienced team of rubber engineering specialists and R&D professionals, we continuously advance new product development and process optimization. During production, we implement a strict quality control system combining self-inspection, cross-inspection, and dedicated final inspection, ensuring batch-to-batch consistency, stability, and reliability. The company is certified to IATF 16949 and ISO9001 (ISO9000) international quality management systems, and we continue to improve our manufacturing and delivery performance through standardized and systematic management.
In addition to suspension and vibration control rubber parts, we also offer comprehensive manufacturing resources and multi-dimensional customization support, including:
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200+ types of electrical and industrial injection-molded components (such as insulating sleeves, protective covers, insulating rods, battery boxes, and industrial protective housings), with an annual capacity of over 1.5 million sets;
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500+ types of machining parts for both civilian and industrial applications;
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1,000+ types of automotive and electrical die-casting products;
We also provide various manufacturing services such as machining, surface treatment, injection molding, and die casting, supporting both custom development based on drawings/samples and large-scale production.
Our products are widely used in vehicles such as Volkswagen, Mercedes-Benz, BMW, Peugeot, Renault, Land Rover, Fiat, Toyota, Nissan, Mazda, Kia, Daewoo, and Hyundai, and are exported to Europe, the Middle East, the Americas, and North America. We always prioritize customer interests and continuously improve our R&D, manufacturing, management, and after-sales service to deliver stable and reliable supply assurance to global partners.
Looking ahead, Changzhou Jianzhen Rubber & Plastic Products Co., Ltd. will continue to uphold our philosophy of “Uncompromising in Quality, Integrity in Service”, driven by innovation and precision manufacturing, to provide globally competitive products and one-stop solutions for customers worldwide.