Qingdao Dipai New Materials Co., LTD. (sales of TPI material) was established on August 24, 2010, the company's products trans-isoamyl rubber, also known as synthetic gutta-perta rubber, with rubber and plastic duality, is a unique performance, widely used polymer new materials. The products are used in the manufacture of high-performance environment-friendly tires, medical materials, shape memory materials, high-performance rubber products, footwear materials, automotive interior parts, high-speed train shock absorbers and aviation, aerospace, military and other fields.