Recently, our company newly developed and launched high-standard railway tunnel CRCC certification special EVA raw materials (VA content is more than 5%, tearing is more than 100),ECB(VA content is more than 5%, asphalt soluble content is more than 5%, tearing is more than 95) and the latest iron-standard CPE raw materials all meet the standards. The raw materials have been optimized by our company's technical team and can be directly used without adding other additives. The product performance is stable, the index is high, which greatly improves the production efficiency, saves manpower and production cost, and has been widely praised by the majority of new and old customers.