Xingtai Longcheng Sealing Co., Ltd. has carefully designed and innovated a production system dedicated to manufacturing flat rubber O rings. Our goals are transparency and tailored rubber solutions for our customers. Our rubber mixtures are state of the art and are ensured to meet quality control ests. Our R&D are activley working to enhance our product offerings to serve the rubber needs of the automotive, machinery, agricultural industries and more. Our extensive offerings are a direct reflextion of our dedication to our customers and helped by our on time delivery and quality control. With our vast stock and molding abilities we can offer a diverse range of sealing solutions.