Jiangxi Kaixu Automobile Fitting Co., Ltd. is a leading China manufacturer, supplier, and factory of high-quality 12mm copper washers. Our copper washers are designed to provide a reliable sealing solution for your hydraulic or pneumatic fittings. Made from the finest quality copper, our washers are durable, corrosion-resistant, and can withstand high-pressure applications. Our 12mm copper washers are produced using advanced technology and are rigorously tested for quality to ensure they meet international standards. They are an ideal choice for a wide range of applications, including automotive, marine, and industrial applications. They are easy to install, and their exceptional performance ensures a leak-free connection every time. At Jiangxi Kaixu, we make customer satisfaction our top priority. We strive to provide our clients with the best products at competitive prices, and our 12mm copper washers are no exception. We pride ourselves on our timely delivery, excellent customer service, and fast response times. Contact us today to learn more about our 12mm copper washers and how we can meet your sealing needs.